Sosig leaving aside your bitter, dog-in-the-manger attitude to people richer than you, have you been living under a rock these last ten years?
How has it escaped your attention that during times of financial constraint/economic contraction (which Brexit will bring, nobody sensible on the leave side denies this) it is the POOR who suffer?
Who suffered most under austerity? The poor and those who had been just about managing, that's who. The sick and disabled. Women, disproportionately.
When tax receipts dwindle, and spending cuts are needed once again, who do you think will be hit by that?
If you are feeling the pinch now, how will you feel when food is considerably more expensive, and services, tax credits etc, have been cut? What if you lose your job (if you have one)?
The richer in society will weather the storm. They have the resources to do so. Some will make money out of it, the likes of JRM, Crispin Odey, etc. Off the backs of children who are already living in poverty, the disabled, and those who already have few advantages.
Shame you were feeling too resentful of the better off to clock all that.