There is an odd thing about "Torah shelo Lashma" [Torah not for its own sake]. It seems different than using Torah to make money.
The way using Torah to make money is often justified by a statement of the Rambam "not just the tribe of Levi, but all who put it in their heart to turn from the vanities of this world and learn Torah for its own sake, God will provide for their needs". This in no way contradicts the idea of the Rambam that one who uses Torah to make money has no portion in the next world. Rather he is simply saying that God will provide. This can not be used to justify using Torah to make a living.
This seems different than "Torah shelo Lishma" (not for its own sake) which is what the sages say to learn for honor. That is there is an intention to receive a side benefit that come automatically. People honor one who learns. But that is a lot different than intending not just a side benefit, but using it specifically to get that benefit [e.g. as a means of making money].
The way using Torah to make money is often justified by a statement of the Rambam "not just the tribe of Levi, but all who put it in their heart to turn from the vanities of this world and learn Torah for its own sake, God will provide for their needs". This in no way contradicts the idea of the Rambam that one who uses Torah to make money has no portion in the next world. Rather he is simply saying that God will provide. This can not be used to justify using Torah to make a living.
This seems different than "Torah shelo Lishma" (not for its own sake) which is what the sages say to learn for honor. That is there is an intention to receive a side benefit that come automatically. People honor one who learns. But that is a lot different than intending not just a side benefit, but using it specifically to get that benefit [e.g. as a means of making money].
