Yes. I know about the ones in Arizona and Nevada because I know (offline) two friends that work in them; one with a boyfriend, one with a husband, both go to college and "cam" in the studio after classes a few nights a week for extra money. The boyfriend is in his girlfriend's page most of those nights so they can chat whenever it's not busy. They're both also active in their local kink community; they have a passion for voyeurism and get paid for it.

Yes, there are "sex workers" that are being exploited or coerced into their situation all over the world. Not everyone who turns on their webcam and disrobes for money is one of those people, and the fact that there are companies catering to them isn't in itself a "sad" thing. They're not part of some underground -- you can find the job listings for the studio's building managers, website maintenance and such on Monster.com. If you've ever visited Philadelphia and walked the tourist attractions, you unknowingly walked by the nation's largest phone sex hotline too. It's a cubicle-farm call center, the employees wearing normal work attire while working FT shifts for FT pay, benefits and bonuses.

I mostly agree, but nothing is pure and perfect. I've seen many people in dev out of necessity rather than appreciation or even desire/passion. Many people despise it deeply (managerial harassment, being undervalued as a person, high stress, absurd workplace processes). It's better for social status and pay.