With such a good service as Google, with all of their products/offerings, you would think if this study is in fact accurate (?) that Google would go after the other approximately 50% of the market. From a dollars and cents viewpoint it would seem like a good business move.

Going heads up against Bing without such a large portion of the market seems like unnecessarily making life harder for yourself. A high-quality service like Google offers is useful to everyone, and seems like a neutral moneymaker to me.