If this is really something you think could be big (a "winner takes all game" as you say), you're going to have to grow a company to address the opportunity -- which will mean giving up the lone wolf thing. That's a choice you have to make personally. I'm sure being the lone wolf is more comfortable, and it's entirely possible that you could build yourself a nice little business that way, but you won't be able to own the market.
Once you decide which way you want to go, applying to YC or not will be an easier decision. I do expect that YC could help you with your network.
If this is really something you think could be big (a "winner takes all game" as you say), you're going to have to grow a company to address the opportunity -- which will mean giving up the lone wolf thing. That's a choice you have to make personally. I'm sure being the lone wolf is more comfortable, and it's entirely possible that you could build yourself a nice little business that way, but you won't be able to own the market.
Once you decide which way you want to go, applying to YC or not will be an easier decision. I do expect that YC could help you with your network.