Only if it was driven by a non-profit org I guess
Of course misbehaving companies would probably stop spending there, but that might not be a bad thing.
It is possible to exist in this space with a potential conflict, as long as you position yourself appropriately. If your interest is to serve "decent" companies by providing them with interested candidates, it can work.
It'll work fine until the site decides chasing profit is more important than integrity of the system, so probably right around the time they're looking for more funding.