Hell, look around you. How many items do you see that were NOT made by a corporation?
The brands I choose are a reflection of my personality. I shop at Wegmans instead of having groceries delivered because I like their quality and I can always run into people I know. I buy Apple products because they appear more integrated and polished than other consumer tech, and that is an important aspect of my personality. I'm not a shill (ok, I did work for Apple a few years ago), but rather I am so content with the brands I choose that I enjoy telling others about them.