Originally Posted by
Illuminance
As a scientist working at a university on publicly funded projects, I can say with certainty that this is not true. Tenure track jobs are in the minority (the number of PhD graduates in science who land one is about 10%), and those that have them have teams of scientists working for them who are neither rich nor famous nor pursuing tenure. Tenured professors don't even do research in the sense that most people think about it - they just petition the government for money so that their team can pursue the research objectives.
The median post-doc pay, for example, in chemistry or biology, is $40,000 a year. That's for someone who has a Ph.D. You were joking about holy men pursuing science for its own sake, but that more accurately describes most scientists than you think.
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If scientists pursued the path of least resistance, no one would major in anything as tough as any of the STEM fields. If you are jaded by med school wannabes, then you know some pretty poor examples of scientists.