While the experience day to day was definitely fun, it destroyed any desire I had of entering the field. A lot of politics, a lot of statistically suspect stuff (even to me, in my third year of a bachelor), and a lot of busiwork.
After that experience I went into web development (full-stack). What I like about it is that even though there IS politics, even though there IS taking shortcuts, and god forgive me for some of the code I delivered, in the end whatever I work on has to actually do the thing it's supposed to do. It doesn't remove the aforementioned problems, but it grounds everything in a way that is mostly acceptable to me.
As frustrating as it can be to build some convoluted web app that feels like it's held together by scotch tape, it's nice to know that it eventually has to do whatever the client asks for, however flawed.
In either case pretty much all humans are profoundly small-c conservative, "big change projects" on society-scale do often end in war/death/etc. At least, it's probably 50/50 whether its a "National Health Service" or a "World War".
However the reason is deeper than that: evolution does not care if you're thriving, it cares that you are breeding. So you're optimized for "minimum safety" not "maximum flourishing".
So if things are stable then you will prefer to stay in them for as long as possible. It is why people need to "hit rock bottom" before they can be helped, often, ie., their local-minimum needs to become unstable so they will prefer the uncertainty of change.
I left, co-founded a startup and never regretted it for a moment.
Edit: The point where I was sure I had to leave was when I was actually starting to play the "publications" game too well - when you find yourself negotiating with colleagues to get your name on their paper for a bit of help I'd decided things weren't really for me.
Edit2: I'd wanted to be an academic research scientist since I was about 5 or so when I actually got what I thought was my dream job I was delighted - took me a couple of years to work out why almost nothing in the environment seemed to work in the way I expected them to ("Why is everyone so conservative?") and became, as one outsider described me, "hyper cynical".