We'd be here anyway, Steam or not. Or rather, we might not be as far into digital distribution as we are now, but at least we'd be well on the way. Steam is the blessing that allows us to have a pretty good service dominate at least one platform, rather than the terrible services offered by the big publishers. Steam is by no means perfect, but in most ways, it's way better than the alternatives. Possibly the only major improvement I'd like from Steam is if it had a DRM-free policy like e.g. GOG does, but since gamers are so willing to accept DRM, I doubt there is really much Valve could ever have done for that besides maybe slow down the advance of DRM.

But it is still largely responsible for the things gamers are complaining about.

If people want to complain about digitalization, I’m sorry, but Gaben needs to be part of the criticism. 

Doin' my part

I guess that's one way of looking at it. I don't necessarily think it's a very fruitful way of looking at it, but I can see why people would look at it that way. The way I see it is that the real issue is, as typical, people. I don't think there's been such a push for digitalization in gaming that people couldn't have resisted had they wanted to, but not enough of us did, and now here we are.