But the experience I have shows me the Torah alone approach rarely results in any kind of decent person. Sometimes you will have elevated people like Bava Sali, but that is rare. The general result of Torah alone is not very good. Religious fanaticism at the cost of being decent human beings seems like a bad trade off.
Plus the religious fanaticism does not result in Torah anyway, rather in fetishes like "zniut" and obsession with sex of other kinds of religious obsessions which have nothing to do with Torah. And then they expect to get paid for their religious fetish and idiotic behavior. And then condemn anyone that does not conform their their confused sick ideas of what Torah is about.
Ultra-religious does not equal righteousness nor holiness. It just results in sanctimonious jerks.
I am not saying one should interrupt his Torah study to make money. Rather if one is in a situation where he can sit and learn Torah, then he should do so and trust in God to take care of his needs. [However I do consider the above six subjects to be a part of a Torah education as the Rambam also held.]