It's not just the coefficient as a reason for hoping someone can make the group stages.
Scottish football in general needs money coming in. This season's Scottish Cup winners/third place will get some form of group stage football next season, by the looks of things. That sort of thing just helps the overall standard of the league which ultimately benefits Rangers as much, if not more, than anyone else.
Imagine the even higher appeal we'd have for players coming in if the standard of the league was better overall? Better TV deals could be negotiated, more eyes on the league means better sponsors etc.
I understand the "f*ck them" feeling, but I do reckon it's not something we should really want from a more detached standpoint.