If people don't have a reason to change from Windows to Linux, it's silly to keep after them, "evangelizing" about how Linux is "better."
But people who are frustrated by their OS; maybe their computer is crippled by one of the (many) vulnerabilities in Windows, and who have a reason to look for an alternative, are more likely to listen. Some of my schoolmates want to switch to Mac but can't afford to buy a whole 'nother computer. Those folks are especially ripe for Mint "recruiting." But folks whose computers are already doing what they want and doing it well, have no reason to take a "Linux evangelist" seriously. I really don't understand some of the "we need to raise our market share" stuff I have read in Linux forums. Other than maybe increasing the likelihood of more hardware support from a few manufacturers, there's no particular benefit if more Linux gains "market share" is there?
Glad I found Linux, but not crazy obssessed with it,