Is Steam stopping me from playing the games I purchased? No? Then I don't really care. Steam doesn't get in my way, and is quite convenient for installing a game on multiple computers (plus I don't have to keep track of disks). Find something worth complaining about.
Yes Steam is probably the best, most consumer-friendly DRM distribution system around, but that doesn't mean you shouldn't care at all. Unless you are happy having all your games rendered unplayable if Steam goes offline / Valve goes out of business. In the scale of a year that's unlikely, but in 10? 50? Quite apart from the legitimate short-term disadvantages, I think in 50 years we will look back on this period of time in the same way we view the lack of archiving of television in the mid-20th century, as a massive unnecessary black hole in our cultural history.
In 50 years, I highly doubt you'd wish to come down from whatever advanced technology we will have to play games on x86 architecture, any more than I have a desire to dust off my Atari VCS and play pong.