I just don't think you're allowing for the clear superiority of Vettel's machine. I don't believe one can look at the numbers in a vacuum.
There's not a shred of doubt that Vettel is driving a machine custom designed for qualifying and running at the front. It does both those things better than any machine in F1 and has done so for going on 4 years now. You simply must account for that when citing numbers.
It has been said that man is a rational animal. All my life I have been searching for evidence which could support this.
-- Bertrand Russell
To make an apple pie from scratch,
you must first invent the universe.
-- Carl Sagan