Why does robbing an armor car net you so little money?
No idea. On the other hand, it doesn't costs that much to craft anything, so I guess it balance out
. I just do crime just enough to craft something, so the MC doesn't really has much money. I think you can edit the money amount too using URM for example, or just using Ren'Py console. I never tried it though because it doesn't bothered me much. When I reached the end of an update, I just "grind" crimes a bit to have about 200 cash buffer for the next update, and it was more than enough.