Move 22 has already taken plenty of duly deserved criticism, so I won't pile on. However, I see white 22 as a continuation on a theme - a theme that I find to be dubious.
I think that it starts at move 12.
- Click Here To Show Diagram Code
[go]$$Wc
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . X . . . . . . . . . . . . . . . |
$$ | . . O . . X . . X . . . . . . . . . . |
$$ | . . . O . . . . . , . . . . . X . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . O . . . . . . . . . . . . . O . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . X . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . X . . . . . , . . . . . O . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]
At this point, the top side is more black's area than white's. A go player with fighting spirit of course does not want to grant anything to his opponent too easily, so we tend to overplay such situations and slam a stone down in the middle of the opponent's area of influence.
A more enlightened course may be to let the opponent take what is probably already his, and go after bigger parts of the board that are unclaimed.
With a simple tobi, white starts claiming the right side of the board. The shaded areas are still open for future invasions, and the circled points are possible continuations.

- Click Here To Show Diagram Code
[go]$$Wc
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . X . . . . . . . . . . . . . . . |
$$ | . . O . . X . . X . ? ? . . . . ? . . |
$$ | . . . O . . . . . , ? ? . 2 . X . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . O . . . . . . . . . C . 1 . O . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . X . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . C . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . X . . . . . , . . . . . O . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]
I'm not going to claim that the tobi is indeed the better move, but I mention it to illustrate a different and more expansive view of the board. You don't have to fight over everything. Sometimes it is better not to.
I recommend Joaz's version of the 'Serenity Prayer':
“God grant me the serenity to ignore the fights I cannot win, the courage to start the fights I can win, and the wisdom to know the difference.”That is true fighting spirit.
==============================================
At move 17, black makes a bland move.

- Click Here To Show Diagram Code
[go]$$Wc
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . X . . . . . . . . . . . . . . . |
$$ | . . O . . X . . X . . . . O . O O . . |
$$ | . . . O . . . . . , . . . . . X X . . |
$$ | . . . . . . . . . . . . . . X . . . . |
$$ | . . O . . . . . . . . . . . . . W . . |
$$ | . . . . . . . . . . . . . . X C . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . T . . . |
$$ | . . . , . . . . . , . . . . . X T . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . X . . . . . , . . . . . O . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]
Joseki is to play at the cicled point, a far more confining move. Even if you don't know the joseki, you can see that black is staying further away from the white stone at R14 than required.
The R14 stone still has some interesting aji, which might later be brought to life with an attachment at one of the triangled points. Such a play could be big if it allows white to live in what is starting to look like black territory.
To ensure that the aji remains, the last thing white wants to do is to encourage black to play near the R14 stone.
So I was dismayed to see this:
- Click Here To Show Diagram Code
[go]$$Wc
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . X . . . . . . . . . . . . . . . |
$$ | . . O . . X . . X . C C . O . O O 3 . |
$$ | . . . O . . . . . , . . C . . X X 1 . |
$$ | . . . . . . . . . . . . . C X . 4 2 . |
$$ | . . O . . . . . . . . . . . . . W . . |
$$ | . . . . . . . . . . . . . . X . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . X . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . X . . . . . , . . . . . O . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]
Now the aji is almost extinguished.
Note that white does not need to strengthen his corner. There are miai plays to east (S16) and west ( the circled points ).