You're such an awful liar :D
I actually have some of the cameras on my computers blacked out (I would never use them for skyping/face timing) because I am paranoid of people watching me . The microphones on those are taped up too. I also know a virus that I caught someone using that could watch someone through their camera/microphone (it still isn't recognizable on any antivirus software)
I was never a victim of these (particular methods...) but I don't want to be. So that's that.
Anyone with any kind of hacking power in this world will usually do it for money. Doing it for funsies gets old when you could make some serious cash.
"it still isn't recognizable on any antivirus software"
if that is true, then they would definitely be doing it for money.
You can buy infected IP's for quite a large sum. What you do with these IP's is not important to the seller.
However i doubt that people who have such a virus that can't be recognizable on any antivirus software would be selling them. Because that would be quite advanced, he wouldn't care for such a small number of money.
But you can download some free virus programs(you need knowledge to not fuck up and you might need more then one), then add some improvisation and find stupid people to give the virus to. Stupid people wont have an anti-virus and then you can have fun.
If you manage to infect hundreds or thousands of people, you may even try to sell the IP's.