Isn't everyone who uses mongodb or Linux or any f/oss but doesn't contribute in kind or monetarily a bad citizen? If you license code under a f/oss license you have to accept that this will happen.

There is no "free rider" problem. There are companies competing and one of them out competing the other. Are you as vocal about every company who failed because they didn't have a good business plan?

Now, should companies (or anyone) who use f/oss contribute back in kind or monetarily? Yes, of course they should; no one is arguing that.