I know of two cases where camgirls actually married their male followers. But....in both cases, the guys were very wealthy and could support the women, to live in a style that they never imagined in their lives. Neither of the men asked their wives to stop camming, and both continued to do so for a long while after hooking up. One girl no longer cams; the other still does, mostly as a fun hobby. Amazingly, both marriages have lasted several years.
Is there really love in any of this? Hell if I know. But after getting a BMW and traveling first class around the world, there is probably some sense of satisfaction and security, which is what everyone wants in life. Should you consider these girls as having sold themselves for money? Hell no, they are no better or worse than anyone else who marries outside their class or social milieu. Everyone has their reasons, and these girls' reasons are no more or less valid than those of anyone else.
But to the OP: If you are not fantastically wealthy, forget it. And to be jealous for somebody doing her job is crazy.