Yes, this is absolutely true. And comparing those who say, "why should I even engage?" with those who overemphasize electoralism I have a hard time saying the latter are more correct. There is a visceral truth to someone who votes for X to get positive change all of with all their friends, then doesn't see that change because X sold out, screwed them over, told them a line, etc. That is more valid and politically astute than mental gymnastics for why those who campaign on something don't fight for it once in office.