Difficult questions (that have a more limited audience) just don't pay the SE bills as much as trivial questions (that have a much wider audience) hence, SE may not care as much about bigger and more important questions that the great unwashed will never likely comprehend.
OK, so traffic pays the bills and that traffic migrates towards the dumb-stuff. It's therefore not in SE's interest to award a greater rep score when answering difficult questions (just in case the great unwashed start to turn away from this site due to perceptions of elitism).
But, on the other hand, it might naturally turn SE into yet another website for banal questions. Is there a danger here? I think there is and, I think that the balance has gone a little too far in favouring the hobbyist/school-kid mentality. If I rant on about making sure your supplier has a good quality system, the hobby "buy it from ebay" brigade will just fall-over giggling.
More fool them of course.
But, where exactly to draw the line?