Advertising on Facebook is still advertising. It has its place, and it can be effective, but advertising on Facebook and expecting to reap the same rewards as you’d get from a social media strategy is a little like hiring a prostitute and expecting to find a love that will last forever. The former requires money but very little time; the latter can be done with no money but requires a lot of time. The former doesn’t require an eager partner; the latter absolutely does. The former does not require a long-term commitment, but the latter can’t work without a sustained, mutual effort.
Advertising on Facebook is still advertising. You’re paying to be there, so it’s unlikely that alone is going to inspire anyone to fall in love with you.