it was when I did my RWC for my previous car, and when the mechanic look at my 19" rims. he said that the engine will work harder to run those big wheels and it's less space for the engine as well, and sometimes carrying too much heavy wheels on the car can possibly damage the engine mounting , and just by logic, you put bigger rims, your engine revs harder.. and imagine how long the engine life last compared to smaller rims.
And as for the discussion, just leave me alone already with my own small and peace world