The tribe of Remainers have the money and other resources to manage either way. In a Brexit scenario, they will be better off relative to the rest of the population, because they have access to all the loopholes and workarounds. So even if everybody is poorer, they will be less so, and they are at the part of the income/wealth distribution where relative wealth is far more important than absolute wealth. I'm probably channeling Veblen here. And if no Brexit, as long as Corbyn doesn't take over, they'll be just fine.
a) remainers are on average richer than Brexiteers
b) any relative wealth differential could well decrease after Brexit. Possibly due to richer getting poorer and poor getting richer:
David Dimbleby: "Moving on to the issue of immigration and the impact on wages very briefly, if free movement were to end following Brexit, is it not reasonable to suppose that we could see increases in wages for low-skilled workers in the UK, just off the back of the economic impact of free movement on wages?
Lord Rose [chairman of Remain campaign and ex CEO of M&S]: "If you are short of labour, the price of labour will go up, so yes, but that is not necessarily a good thing."
It's a good thing if you are that labour. But not if you are the CEO of M&S.