Couple things to keep in mind with Kevin Spacey: First, this just happened. It’s too early to gauge the fallout.
Second, he and Rapp are both part of a subculture that most Americans find unbelievably sordid anyway, and this was inarguably truer back in the 80s when the events in question occurred.
Third, while the event is being framed as an Abomination unto God, it’s actually garden variety squick in context. 14 isn’t all that young for a sexually active gay teenager. A lawyer pointed this out to Rapp when he was considering pressing charges.
Finally, there’s a legal concept called “statute of limitations.” Virtually every adult has something in his or her past that warrants jail time, and if you’re serious about pursuing it, you really need to do it while the gun is still smoking and the body is still fresh. Spacey will still have a career ten years from now and Rapp probably won’t.