People who are the most successful are always "all of the above" where that includes talent, training, flexible ethics, privileged background, luck, and drive.

People who are the most successful are always "all of the above" where that includes talent, training, flexible ethics, privileged background, luck, and drive. Anyone who lacks the utmost in any of those categories is going to be outdone by another of the billion people on the planet. This isn't something you should have to have empirical evidence for to believe.