Fuck all this "don't burn bridges shit"...this is pussy ass move... if your mentality is "somehow in the future I might need this job again" you already a loser.
Never backtrack, always move forward.
The guys that get to the top tell it like it is and make a stand and offer and show better ways of doing things.
Don't like something, say it, and show a better way, make a change, don't stay static.
Just don't complain without offering alternatives or better ways.
You don't get to the top without burning a few bridges along the way and fucking over a few people, its nature of the beast in business.
Just how it is. Learn to accept it.