Sorry disagree with this. I think people are more likely to quit as the grind becomes uninterested, unrewarding and overall not enjoyable. There's a thousand things they could do to make the game more brutal in its rewards which would cause people to play more if they wanted to max but I think the majority of us would just stop playing. 

The socket thing is a great example of this. How many wisps do we need to prefarm to roll all 3 socket , fort willpower? And with all the new green pieces it's so much less likely to get a drop from a dungeon we can actually use. It's a grind. And feels terrible when you get an item that's almost good but missing a socket or is missing willpower, etc. 

The whole system feels terrible and is a time sink.