It will be interesting to see what happens when we reach a position where virtual drugs are possible, or virtual reality can be as addictive and detrimental to ones life as being addicted to chemicals.
We have already had a virtual drug in widespread use since the 1940s: television. You can hook TV watchers up to scanners to see just how much it alters their brain patterns. Its effects aren't even subtle when it comes to their physical behavior either, it's just so culturally accepted to be "couch surfing" as to be perceived as normal.
If tens of millions of people took a pill and sat basically unmoving for upwards of three hours each day, experiencing the lightshow generated by their own mind in concert with the pill, the squares would be in an uproar!
Can you ban math(s)?