No doubt high level (ex)politicians are very privileged and operate above most limitations imposed on regular people. But that's moving the goalposts of the discussion pretty far indeed.

The original premise was that the entire "55% [of homeowners] wield extremely disproportionate political power". Sure, a few of those homeowners are also politicians with disproportionate political power. But nearly everyone is just regular people with one vote and no other influence, whether homeowner or renter.