What many don't realize is that i goes both ways. They might be dressed nicer than us, but I'm going to assume they're sleazy salesmen like just about everyone else that still wears a suit. I'll assume that no one half way competent works at the company, because we work in a competitive industry and the best people have options to work in better environments.
I'm sure most of us here have worked with enough useless consultancies to know that there is no correlation between dress and ability. It's not even a class symbol anymore, the biggest group of people that wear suits to work are in retail these days.