Inception was one of the most successful original movies of all time at the box office. The movie was met with critical and audience acclaim, and Nolan was recognized by his peers with major nominations for directing, writing, and/or producing from all of the major guild awards. TDK also had similar acclaim, if not as many award nominations. Unless you are using the "my personal taste is the ultimate arbitrator of reality", there is no way you an claim that big budget films ruined or set back Nolan's career. He went from a small time director to a major industry player in less than a decade. As much as J.J. Abrams tries, I think that Christopher Nolan has the best chance of becoming the Steven Spielberg of his generation of directors.
I don't know why you keep bringing up box office. Adam Sandler movies are box office successes too. And if you want to talk about critical acclaim, Inception is rated average among his movies both on metacritic and rotten tomatoes.
I don't know why you're so butt hurt on my little comment anyway. Of course it's a subjective opinion. And Steven Spielberg of his generation is not a compliment to me at all.