When it becomes technologically possible to interface electronics into our brains, corporations will have almost unprecedented opportunities to do some really terrible things directly when the world becomes socially-pressured to be neurally-connected.

I say "almost" because the manufacturing of consent and desires exist now and it is popularly believed to "apply other people but never me," a direct connection has the potential to make this manipulation cheaper and stimulate the brain in ways a glowing screen looks like banging rocks together.