You can get away with non-perfect chainlines. But then if the chain is bent enough, you are gonna have chains keep derailing. 1/8 chains are stiffer, and so derail into the bend. Chains for geared bikes can flex a bit, but that means it's gonna flex out of line and thus derail. (Stiffness can be a nice thing, you see?)

Throw on that chain as 610HX is one of the most famous chains. Ride awhile and see if if your drive-train bust. But keep in mind you can derail at any time. Also keep in mind, you could be mistaken, your chainline may be straight enough to get away with it just like with mine.