Well... about the poll, is a good question, but engineer or businessman both have same objective, make money. Anyway a engineer soon or later will try to be a businessman, all depends on your proffesional situation.
Both jobs needs a special talent, but if i could choose, i think that be a successfull businessman needs less work (and more luck) than be a successfull engineer, but both are hard jobs.

I?m engineer but i will choose businessman