Well there is an interesting myth regarding why Brahmins are poor.
First another myth from Brihatdharma Purana. According to this myth, Goddess Lakshmi was an ardent devotee of Lord Shiva and she used to worship Shiva everyday and as a ritual used to offer one thousand lotuses during the worship. During one such day, she realised there were two lotuses less, and it was already too late to go looking for the lotuses. It was then that she remembered that once Lord Vishnu had described her breasts as blooming lotuses. She immediately decided to offer them for her worship. Lakshmi cut off one of her breasts and when she was about to cut off the second one, Lord Shiva appeared and stopped her. Satisfied with her worship, Shiva then changed the breast into a the Bael (wood apple) fruit and sent it down to earth to grow outside every
’s. temple of Shiva
Though Bael fruit and its leaves are offered to Lord Shiva, it is supposed to be the house of Goddess Lakshmi. Now let’s get back to the original question, as to why are Brahmin’s poor?
To this, Lakshmi replied, that she was upset about the fact that the Brahmins, kept tearing off leaves from her home (i.e. the Bael tree) and offering them to Shiva. When they didn’t take care of her home, then why should she enter the homes of Brahmins?
I guess, Vishnu had no answer to this, and we have probably got the answer to first question!