And really good doctors have really high bills to pay, as well. Not many developers need 8 years of the best schooling (one could make the argument that really good developers don't need any schooling, although it helps).

Your point still stands, but student loans from med school are nothing to brush aside.

That's not a universal truth. Studying medicine in Europe is not significantly more expensive than studying history, CS or whatnot.

E.g., in Belgium, any year spent studying at college- or university-level costs €550 (±$720), plus the cost of the books. If your parents earn less than a middle class income, you pay significantly less.

The major difference that does hold true everywhere, is the fact that doctors start earning a salary much later.

For really good specialists, student loans from med school are forgiven after 10 years of practice in academic medicine (which your residency counts towards), and often paid off for you if you go into private practice.