Height correlates with income; an appearance of health and vitality is likely important; but I highly doubt muscularity beyond what you'd get from a normal healthy lifestyle and good genes will have a positive influence on how others judge you in the world at large (at the gym or similar context is different, of course).

I don't know what research has been done, but my own snap judgements of unusually muscular people tend to be negative; couple the muscles with an exaggerated strut and they go strongly negative.