Is this obvious? or fair?

Calgary's alderguy Craig Burrows, when speaking about how taxes for emergency services should be foisted, said this:

"obviously someone with a bigger home on a bigger lot should pay more taxes than somebody with a smaller home on a smaller lot -- that's fair."

Why would it be fair that someone with a bigger home pay more for an ambulance to drive to it than his neighbour with a smaller home?

In other words, what Burrows thinks is "fair" is that those who have more should pay more, regardless of what they get for it. And Burrows is considered one of Calgary's "conservative" voices!