as someone who majored in biochem, can tell you this is not the usual case. life sciences field generally requires secondary schooling if you want to make higher salary/have more power. i do enjoy my current job, and it is very easy, but it does not make as much as some of my friends in other field.
i think i would have majored in engineering or comp sci. its not that i am unhappy with my current discipline, i do love science. but i feel that i would have to do less school for the salary i want in those fields.