Obviously it will be higher in the west because incomes are higher, but the rates will be the same, which is the more salient point.

You'll see the same thing if you look at any sub-national division with high salaries - e.g. Toronto and Vancouver have similar incomes as Alberta, so pay a similar amount per person in federal taxes.

Ottawa-Gatineau is notably more of a cash cow in terms of federal taxes than Alberta, by the taxes-paid-per-person measure.