Why are there so many bimbos on this show?

It brings it down for me. Lets seem some real dates with real conversations, it also shows how shallow us men can be. Will have the pre interview with the guy saying I like intelligent women who have something to say, and then their date arrives who is thick as a plant of wood but nice on the eye, and that all goes out the window (usually only for the girl to think he's not good enough as he is too short or doesn't wear a rolex).

It bugs me no end.