Most of them only state about $10k a month. Don't think is boasting. In fact very humble already. Real estate agent if cannot earn > $10k a month is considered below average. Even sell cars also can earn about ths figure after including all the loan and insurance referral commission.

Anyway how much you earn is not the most important. How much you spend and how much you can save is. Earn $10k, spend $9.5k is not rich.