I dunno, I think Mario probably saves Peach all the time just because he's a nice guy. He'll go on quests for other people, too. Besides, he seems to be the only person who CAN save her, with the possible exception of Luigi. Who else would do it, Toad? Yah right.
"Like the moon over
the day, my genius and brawn
are lost on these fools."
-Bowser, SMRPG
Sometimes I dream about being carried off by a giant squirrel...Does that make me a nut?