You can look at this from many directions. Did the natural hustlers hustle their way to Google, while the naturally complacent stayed put? Did the Googlers just go there because that's where their friends went, or because they thought it was cool? Did the Mountain View people catch the fever after the fact, and become hustlers, while the Redmond people absorbed the relatively relaxed culture there? Did everyone just go where they thought was best and then it turned out one of those places was saturated in money?
The greatest predictors for success in life are industriousness and intelligence. Over time (and that's important, over time), the intelligent and industrious are expected to beat the odds, and achieve success. Ultimately there are so many outside forces in life that are beyond your control, that achieving success is always predicated on some level of luck. But eventually, smart and industrious people will rise higher than others. Life typically lasts for many years, you can blame luck if you want for any particular individual outcome (even though that's not entirely productive), but not for having a major influence on lifetime success.
Luck does always belong in the conversation - "All great events hang by a hair, I believe in luck, and the wise man neglects nothing which contributes to his destiny"