I can substantially increase the probability of success of this particular startup by becoming an early employee and applying my skills and talents. I believe t

I can substantially increase the probability of success of this particular startup by becoming an early employee and applying my skills and talents. I believe that, and founder who is hiring me believe that -- if either of didn't think so then the hiring wouldn't happen. That is different from an investor who may not see me as exceptional (except maybe they do... after all, investors care a lot about the team, including not just founders but also early hires).