OP. It is wrong because most women are not cam girls because they do not want to be cam girls. Same as most women do not work as call girls or pole dancers because they do not want to. They would feel dirty, degraded and cheap, and therefore prefer to write articles, work as a shop assistants or on the till in Burger King because although they work hard for little pay they do not feel like they are selling their souls. It takes a certain type of women who actually chooses to make money this way, but for most women it is not part of their physiopsychological makeup. A high percentage of women you see working as hookers, escorts, and cam girls do not actually do it out of choice but because needs are a must for whatever reason. Maybe they have got in bad debt, they need to feed their kids, they do it to feed a drug habit, whatever.
Therefore taking homeless people and using a roof over their head as a bargaining tool in return for getting them to show their bodies on cam (so some john can jerk off while typing instructions what he wants them to do) is not a good idea, as this is not part of who most of these women are. It is not what they would choose to do, so you would be taking advantage of their rotten circumstances to make money of them in a way that would make them feel disgusted.
It would be much nicer that you use your possibly creative brain and work out another way to earn, then perhaps offer one of them a job that will make her feel worthwhile, such as cleaning your office or teaching to write content for your businesses or something. Give her a wage and she could get herself off the street. Or make a ton of cash and set up a shelter.
Being homeless is a shitty very hard to get out of situation - no address, no job - no job, no address.