Having always shunned big companies, I think this is something I never realized until someone mentioned it last spring.
You don’t work for ACME corp, you work for your team there.
You don’t work for ACME corp, you work for your team there.
Not only do you work for ACME corp., your team's manager (and their manager, all the way up to the director) need to do what the C-Suite thinks will make Wall St. happy, to raise the stock price. All work planning must justify why this and not something else.
You almost certainly cannot pretend that your team is like an independent startup/lab embedded within Acme.
If you've always shunned big companies thus far, your intuition has not led you astray.
Edit, to add that you do interact with your team, so if that is good, you can be insulated from the rest of Acme in that particular dimension (which is a big component of one's experience of working for any employer).