When presented with '1 + 1 = 2', some people will be interested enough to ask why, and others won't give a fuck. Same goes for 'Hitler invaded Poland'. It doesn't mean one person is better or worse than the other, they're just different.

The real problem will arise when people stop being interested. And when that happens it won't be the fault of the Khan Academy or wikipedia or the Internet or TV or video games or religion or <insert favoured target here>.