$0.10? Don't know where you get your rates. I'm almost solely based on PPI now. A top tier country Install can bring me $1.50-$4.00 per Install (depending on what they click off on). A majority of my traffic comes from top tier countries as well.
I have a 60%-69% average Install rate per day (meaning % that Installed adware), and bring In a lot of traffic.
Some shady "networks" may Install straight up viruses, but there Is a huge difference between adware which Is what I promote, and straight up viruses that are floating around on the web. Most freeware that people use and love wouldn't exist If It wasn't for adware supporting the developers.
If It Isn't Illegal, you're not going to have any Issues. If you are working for one of the shady "networks", then you will run Into some problems (especially hosting).