I once went to a lot trouble to report a bug in an online precious metals trading site, and they gave me, like, 1% of an ounce of silver as a reward. :-) At the time, I seem to recall figuring out it was about $50. Of course, I had to open an account on their site in order to claim it, and there was a large initial deposit, so blah, nevermind....
I don't think it's safe to compare every internet site to Google. Google is notorious for not having good support, but many other companies take customer feedback very seriously.
I've reported bugs in Google products before, but it's usually just not worth chasing a company down for something that doesn't really impact me, and often they'll just refuse to acknowledge the problem or refuse to fix it anyway. E.g. the issue I described at https://news.ycombinator.com/item?id=10478264. Since then I usually won't bother unless it's hard to work-around or the company has a known bug-tracker.