Virtually every single bad adaptation can be directly traced back to studio interference.
Movies like LoTR only happened because the studios thought it would be a colossal flop, and so left the directors and producers alone.
If you want great movies, the studios need to leave the producers and directors the hell alone.
There is one animated meme making the rounds now, posing the question on whether viewers would want a bucolic near-communist solarpunk future where everyone is happy and has their needs met, or a 40k future of massive mechs that can level entire cities on their own.
I say: why not both?
Crunchy outer shell of 40k that is just enough for a healthy defence of humanity, 90+% gooey solarpunk interior that gives everyone else a psychologically healthy and comfortable life.