A study of business school graduates tracked the careers of 1,500 MBAs, from 1960 to 1980. From the beginning, the graduates were grouped into two categories:
Category A (the "money-now" group) consisted of people who said they wanted to make money first so that they could do what they really wanted to do later (presumably, after they had taken care of their financial needs). This group represented 83% (or 1,245 MBAs) of the total population studied.
Category B (the "passion-now" group) consisted of people who chose to pursue their true interests first. This group represented 17% (or 255 MBAs) of the total population studied.
After twenty years there were 101 millionaires in the group. The clincher: only 1 of the millionaires (one!) came from the "money-now" group, and 100 came from the "passion-now" group. The study’s author Srully Blotnick, concluded that "the overwhelming majority of people who have become wealthy have become so thanks to work they found profoundly absorbing…Their 'luck' arose from the accidental dedication they had to an area they enjoyed."
Source: Making a Life, Making a Living by Mark Albion, p. 17