Yes, exactly! A proper scientist would not use terms like 'untrustworthy'. It's absolute bollocks. And yet, you can bet that when studies come out, this is how they get reported in the press. It's as hoop says.
I find it so odd that when we look at men, people are quite happy to say the characteristic features that make males of any species attractive to mates - such as obvious good health, good genetic material, etc. - might easily be translated into more modern social concepts such as wealth, intelligence, etc.
People bend over backwards to explain why 'biology' would explain a woman choosing a man who might be able to provide - but who is a lousy genetic risk. I've actually seen people justify Hugh Hefner this way! I mean, let's not be unfair, but the chances of a man his age fathering a healthy child are not high!
Yet when it's women we focus on - why, of course, men choose pretty women because pretty women have good genes. 