If doctors didn't get paid so well, no one would want to become a doctor.
If doctors didn't make so much money, it wouldn't be worth practicing medicine.
この場合、次のような言い方ができますよ。
ーIf doctors didn't get paid so well, no one would want to become a doctor.
「医者が高給取りじゃなかったら、誰も医者になんてなりたがらない」
ーIf doctors didn't make so much money, it wouldn't be worth practicing medicine.
「医者がいい稼ぎでなければ、医者になる価値なんてない」
ご参考まで！
It is true that doctors have a high salary. But their work is extremely hard.
It would not be possible to do such work without a high salary!
ご質問ありがとうございます。
"It is true that doctors have a high salary."＝「医者が高収入を得るというのは事実です。」
"But their work is extremely hard."＝「でも、医者たちの仕事はとても大変です。」
"It would not be possible to do such work without a high salary!"＝「高収入でなければそのような仕事をするのは不可能です！」
ご参考に。
カナダ 
アメリカ合衆国 
