I was hired at Google at nearly the same time as a certain famous ex-Googler. Both of us were given difficult intro jobs with legacy systems, the sort of projects that chew up engineers and spit them out. It's a chance to prove your mettle.

One of us attacked the problem head on, taking on tasks that would normally be "below" us. In the end, the bad project taught him what he needed to know about Google engineering. He replaced the legacy system with modern infrastructure, which brought him public recognition from the senior VPs, new opportunities to work on interesting projects, and nomination for promotion.

The other one of us decided that he was too good for his job. He very publicly whined about how it was below him and how the only way to get ahead at Google is to start out in one of the interesting jobs. Rather than work his way up through a meritocracy, he expected to be instantly recognized for his natural genius. He got poor performance ratings from his peers and manager, and eventually rage-quit after about six months.

It was the classic Goofus and Gallant story.