I don't think that lead generation ad spending on facebook represents a small subset of the total advertising spend on there. Sure, there are always going to be

I don't think that lead generation ad spending on facebook represents a small subset of the total advertising spend on there. Sure, there are always going to be monolithic companies that market poorly on facebook, but from my experience this is not the norm, and a lot of companies and startups are marketing on facebook without blindly throwing money at it.