<p>It is highly, highly contingent. I am sure you can adduce aggregate numbers somewhere, but I don't know that they will be indicative of "100% effort." </p>
<p>You can become wealthy by either path. It would be foolhardy to choose the carrer you like less because it does marginally better in the aggregate than the other. You're more likely to be financially successful doing something you enjoy than something you dislike, as it will be harder to keep up 100% effort for the span of an entire career in the latter case.</p>