UFC Welterweight champion Georges St. Pierre has long been noted for his professional demeanor and squeaky clean image. He's also been known for having the most lucrative sponsorships in MMA.

Now that the UFC is coming under criticism in the business press for the unprofessional behavior of numerous fighters, announcers and executives, St. Pierre has some very definite ideas about how fighters should behave and feels vindicated in his approach.

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St. Pierre spoke to MMA Fighting's Ariel Helwani and explained his approach and the resistance he's faced from other MMA fighters.

We'll hear from GSP after the jump...

"I wore a suit at press conferences when all the other fighters were making fun of me. (They said), 'Oh, look at St-Pierre, he doesn't wear his sponsor.' I'm the one who first started doing this stuff, and I think the image and how you conduct yourself ... because the sponsor, the big companies in corporate America, they're not interested in sponsoring an athlete who is good in his sport but acts like an idiot outside of the Octagon. They want someone who performs well, of course, but acts like a gentleman outside of the Octagon.

"I understood that more than ten years ago. That's why I behave the way I do and I do things that I do. That's why I have a lot of sponsors. I do have a lot of sponsors and a lot of money because of this. It brings money to the table."