I think my biggest issue is that since some people don't understand my work, they can come to the conclusion that I'm not working as hard as I could be because

I think my biggest issue is that since some people don't understand my work, they can come to the conclusion that I'm not working as hard as I could be because I don't look stressed enough or busy enough when I'm working. My boss values my work, as do most of the people I work with, but I know for a fact that a lot of the clerical employees think I do basically nothing. I've never worked in consulting, but I have friends who work as consultants for the Big Four, and it certainly seems like being stressed and working long hours is prioritized over making a meaningful contribution. That's probably a little unfair, but I've read the emails they are responding to a 10 PM at night, and it seems like everyone just stays up all night sending emails so that everyone else knows they are 'working'.