How large is the effect of one's appearance on the recognition among scientific peers?
I doubt how a scientific study could measure "beauty", in order to conduct the study. Perhaps human labelled? A study that would like body mass index to citations perhaps is a research waiting to be done!

Yet, unlike CEOs, you don't see the authors when reading a paper. Altough, being popular at conferences might help them get initial citation count. 

Go for it :)