The voters of the Academy make for superior judges of film because they're exposed a vastly greater number of films per year, understand the history of cinema far greater than the general public, and can actually go into detail about the subtext and deeper meaning of films.
Case in point, the general public got a Grown Ups sequel greenlit.
The Blind Side is one of the safest, most predictable movies I've ever seen. Just like Saving Mr. Banks (another John Lee Hancock film), I knew exactly what to expect when walking into the theatre. Tell a predictable story, try to tug at the heart strings, call it a day. It's ambition-less filmmaking.