A 'Do-er' is at least at present motivated, and educating them will get them to the desired combination of education+motivation in the present, even if that education is going to be by necessity a very narrow one (typically: job specific).
Being hungry for money and creature comforts also tends to be conflated with being motivated ('ambitious'), but it doesn't really align well because once financial success (for some very modest success) is attained the motivation will vanish. That's not necessarily a bad thing, but it tends to confuse people who were not aware of the driving power being the outwardly visible motivation.
The movie 'Rush' has a nice bit about that, James Hunt just wants to be WDC, once. He doesn't care about anything past that point because it will give him what he wants. But until he's got it he will be super motivated.