People Use Technology Mathematics But Usually Have No Idea How It Works.
I myself I’m tired of not fully understand maths, so I’m starting to study the more scientific/advanced side of it to at least try and feel less stupid. 
MIT.edu have some pretty cool free courses on Math.
The reason most of us don’t care much about intellectual capacity is due to the fact that the fundamental necessities of life (eat, procreate, etc) are already complicated enough and most creatures have a sub-conscient focus on survival first: procreate no matter what.
Usually people barely have time to be pro-active into the green area of this well known pyramid:
