I don't consider striving to be elite and elitism as the same thing. To me, striving to be elite is trying to be the best role-player that you can be, whatever exactly that means to you, and perhaps offering assistance to those around you to help them accomplish that same goal. It's a positive thing, unless it leaks over into elitism. Elitism, in my book, is lording your superiority over others, shunning those who don't live up to your standards, believing that those who do things differently from you are "wrong" and shouldn't be RPing, etc. It's something that's always negative, even if it may have started with good intentions.
Elitism has a lot of forms in RP, but mostly I think it comes in the form of mocking others, either directly or behind their backs, rather than offering advice, or by refusing to RP who don't meet your standards. I will elaborate on that last part--there's nothing wrong with rejecting an RP with someone because you think their writing or whatever is terrible. RP is meant to be fun, so it's totally counterproductive to do it if you aren't having fun and enjoying your partner. However, there are people who take this to the extreme by only RPing with people they already know, and often in private, because they're terrified of the idea that everyone else who might try to join in won't be "good enough" and thus they won't even give new people a chance.
Elitism has a lot of forms in RP, but mostly I think it comes in the form of mocking others, either directly or behind their backs, rather than offering advice, or by refusing to RP who don't meet your standards. I will elaborate on that last part--there's nothing wrong with rejecting an RP with someone because you think their writing or whatever is terrible. RP is meant to be fun, so it's totally counterproductive to do it if you aren't having fun and enjoying your partner. However, there are people who take this to the extreme by only RPing with people they already know, and often in private, because they're terrified of the idea that everyone else who might try to join in won't be "good enough" and thus they won't even give new people a chance.