That's not true at all. John Tory's majority on council is made up almost exclusively of suburban councillors - he systematically excludes any downtown councillors from having any say in anything and won't let any of them even sit on the public works committee. Under Tory and before him under Ford, Toronto has been run by and for the suburbs and downtown has been screwed every step of the way
I agree, Etobicoke on its own only has 6 Councillors, and this right-wing swing really began with Ford to some extent.
When you combine Etobicoke, North York and Scarborough, that's 25 out of 44 (not including old York which has 2 Councillors that swung to the right/Fordists) if they vote on a block, which happend in 2010 Fordists, far-right wing Mayors can win... and this is why we have some terrible plans in place like Scarborough Subway.
Tory managed to win over Key areas of the suburbs like South Etobicoke (3 wards) and central North York (5 wards), and one in Scarborough. That's how he became mayor. The only way to govern is to placate, as DL mentioned, the suburbs which is why you see a definite anti-tax pro-subway tilt to Tory's admin. Of the 12 members of the executive, 3 are from Toronto-East York, one being Palacio (conservative) the other two are liberal-like.
But all of Etobicoke elected right-wing Councillors, so did York; Scarborough is a mix, 1 NDP aligned Councillor, I'd say 3 maybe 4 Liberal-like councillors (I'd put them centre-right, except De Baeremaeker, he's confusing, but lets call him dead centrist) the rest more traditional conservatives.
North York has 2 NDP aligned Councillors and at least 2-4 Liberal-Like Councillors (Carroll, Colle and Matlow are centre-left for the most part, the other one, Pasternak i'm not certain but likely Centre-right) Toronto-East York is almost all Urban Progressives (NDP, Left-Liberal types), one notable exception being Palacio.
Sounds like a lot of centrist and leftist, but the lines are blurred because many of those suburban centrist fall into the pro-car, low-tax group that hinders urban development around transit and housing.