Would *points at android* be an option here?
Even without root you can do a lot and force install a lot by hand. Android seems to have done well enough and keeps a boot held at Nintendo's throat, as well as a bit of an exodus of devs that were once prominent on the GBA and DS.
Also on Nintendo using a downloaded ROM then if they outright own the copyright then how is it a bad thing? We did have that discussion before though (
http://gbatemp.net/threads/nintendo-downloaded-super-mario-bros-from-internet.459258/ ) and probably the time before that when it was last dug up, and then before that when it was originally discovered. For the most part it seems it is an amusing side in a trivia night, not worthy of much more consideration.
A possibly related one. I install adblock for a lot of people (basically every system I touch unless I am asked not to, and in that case I will usually just teach them how to disable it should they have to go on one badly coded site). The amount of times the existence of adblock takes on the features of some kind of revelation.
The bigger umbrella is how many people do and want to use their computing devices as some kind of passive thing, not learning even the first thing about the inner workings, if they can fix a problem is a memorised solution rather than anything deductive (or some other form of reasoning), might even fear they will break it should they mess around and so forth? If you want to make emulation more known you will likely have to first solve that, though on the way you might try to undo some of the damage Nintendo did by casting emulation as bad.