TBH, people using unity and ubuntu are smart enough
Remains to be seen...
with Ubu (and Linux) still not being mainstream enough for the average desktop.
But down the road, I wonder...
Especially after the number of WinPCs I've seen with all
the crapware shortcuts still
on the desktop two years after the owner first got their machine. (And many of these people have been using Windows since Win95!)
As the demographic changes, so too will the "monetization" games that get played.
Right now, Linux is fairly safe because it's still pretty geek. But if Canonical has its way, that won't be the case forever. Especially once they finally release their openly 'secret' tablet PC.
Just remember - whenever automated background processes are allowed to run (especially processes that have network communications capabilities) there is also a group of very knowledgeable people actively looking for ways to abuse and profit from it.
Such a high price to pay for a little (debatable) user convenience and profit opportunity.