At this stage of my life I would rather try and have some small impact within a company and suffer through those things than make such a big stink that nobody can trust to work with you. It's very important in an environment of a big institution that people don't feel threatened that you're going to expose them in any way.
Never be in a hurry do everything quietly and in a calm spirit. Do not lose your inner peace for anything whatsoever even if your whole world seems upset.