becoming a profesor is quite hard, but not as hard as doing a good job as one.
you have to be willing to work harder than most people, but for less money and less respect. then you have to teach people with less ability and less motivation, for your whole life.
and you are evaluated by people who think science is about money. just today i received an email from a committee i agreed to join, evaluating grant proposals from young faculty. it said the first criterion is quality of the science, "I.E. HOW LIKELY IS THE PROSPOSAL TO GENERATE OUTSIDE FUNDING?"
in other words, they actually do not care anything about the scientific value of the work, just whether it will bring in dollars to the university, which is another matter entirely, related to the defense department's interest in the work, the political appeal of the work to congress, etc... I am tempted seriously to resign the comittee before it even meets.