Will putting an e-bike chain on a "traditional" road bike give more mileage? I was browsing through a webshop for some replacement parts and in the "chains" section I came across "e-bike chains" - claimed to be stronger than traditional chains.

Since 11-speed chains are supposed to be replaced when the stretch reaches 0.5% I came up with an idea of putting this e-bike chain onto a traditional (thus utterly human-powered) road bike to benefit from longer life of such a chain. 

Since the price difference isn't dramatic (it may be 50% more which transfers to around €10 more compared to KMC X11) I got myself into thinking:


isn't putting an e-bike chain the way to go when aiming for longevity of the chain? 
or should I either replace a cheaper chain more often?
or buy a higher quality "traditional" chain?


Which is the way to go when looking for the most miles per dollar? The question applies to 11-speed only. With no limitations going single speed would be the cheapest option, I know that.
Chains don't stretch under any kind of normal use, even the kind of power that an e-bike can put out (which, to be fair, can be several multiples of what a fairly strong rider can put out for extended periods). 

Chains elongate through wear: the combination of lube and environmental grit acts as a grinding paste between the moving parts of the chain, so that side-plate openings enlarge (or rivets wear down), resulting in a longer chain overall.

If you want your chain to last longer, keep it clean.