I have a neighbour....we live in a safe conservative seat, her house is worth £700k
Her husband owns a portfolio of properties and rents them out to mostly Europeans and I know he doesn't fully disclose his earnings.
He managed to buy the properties through inheritance
Her two dc both attend grammar schools which they were tutored to get into as she didn't want them to go to the local (excellent) comp
They are rich successful people due to the property boom - but are staunch lib Dems / socialists and I don't understand how such a capitalist couple can vote so far the other way