Agree with the bit about the disabled. I would not criticise the government for a scheme to help the disabled to work - and weed out the odd sponger. The problem has been that some of the assessors have simply not done their job properly. Although there is an appeals process to rectify this.
As to the banks, there are examples of individual greed and criminality which must be stamped on.
On Brexit, if the City of London banks make more money outside the EU, they'll pay more taxes
So will their U.K. customers
I am very confident that most financial products are set to rise especially insurance