Does the loudest voice rule the market?

When I listen to the radio in the morning, it is virtually impossible to not hear an ad for real estate agent Frank Leo and his “multi-million dollar marketing system”.

While many real estate agents also advertise their services, Leo seems to be everywhere, which creates the impression that he’s the biggest and the best.

It begs the question of whether being the most aggressive advertiser makes you successful. If people hear your claims enough, do they start to accept them as reality?