Ambiguity in choice B

I got this question right but did so by process of elimination. Although "nothing brings more recognition . . ." states that overthrowing conventional wisdom is the most efficient way to get recognition, how can we say that MOST scientists have substantial motive? What if only a few scientists want to be recognized (unrealistic I know but I thought we weren't supposed to assume anything). I think "some scientists have substantial motive" would have been more appropriate. Are we allowed to make a connection from the premises to "most scientist" even though it doesn't explicitly say that most scientists want recognition? Or am I just being too picky?