I interviewed Google twice in the last 15 years. Flew out to Mountain View both occasions. Definitely sensed more of the above sentiment the second time around. Judging from (the admittedly small dataset of) this article and some of the comments here, I guess it's gotten worse.
Don't feel bad. It sounds like you'll have a lot more fun and runway for meaningful accomplishment along the route you've chosen to pursue.
I have no qualms with googlers - I interact with a lot of them at I/O every year and it's a blast. But at an institutional level the company was a lot more humble back in the day (and incidentally, more deserving of the high-caliber reputation they now take for granted).