So physical size? That's even more disproportionate.

Its some mythical entity that some mantain exsist that binds some together and seperates them from others...

What's the saying? Competition breeds excellence? Something like that.

Yes and I would rather be Tesco competing with ASDA and the other big brands than my corner shop down the road scraping by... there will still be competition, internally for products and externally with the big powers as a powerful entity than a small pawn on thier chess board.