Right. but, The Sad thing is, Scammers use that platform to promote their scams. For example, Scammers promoting Facebook meta Token ICO On Facebook (LOL). I think even Facebook doesn't care about it. Either they don't check ads before accepting or they don't care about it.
Scammers now use facebook to the maximum to promote fake meta ico. Facebook is more interested in making money, and scammers use their platform to promote fake websites with their product names. And even after reporting those sponsored posts, Facebook takes a long time to take action, which increases the chances of scammers succeeding in their intentions.
Facebook is more interested in selling their ads, they never consider the safety of their users. So those who use facebook should be more careful that facebook ads are not all credible.