Jensdad, United allows NE businesses conectivity to US markets. It allows staff to get from A to B without too much hassle and therefore makes the region more attractive to inward investment, capital and jobs. One Thomas Cook B757 per day does not have the same "value" as one United B757 for a host of reasons, and that's saying nothing against TCX or TOM or LS.
Also you should not use the online seat plans to work out load factors, you'll be out.