It seems that I am the only one who ever looks at these issues from the standpoint of someone doing business.
Suppose "Lifetime" Channel asks Dish Network for a large increase, larger than they are charging cable. Charlie always resists those increases, when they are not fair or not reasonable. So, they say "Fine, we will just not renew Lifetime" and immediately Lifetime loses 12 million potential viewers, and have to reduce what they charge advertisers. They are losing money. So, Dish Network has some leverage.
Now suppose the studio that makes the movie "National Treasure - Book of Secrets" imposes DRM restrictions, and Charlie then did what some in this thread propose - not carry those movies at all. The result would simply be that people would rent the movie elsewhere. All that happens is that Dish Network would lose their share.
If Dish Network drops a channel you like (or doesn't add it), you have to go through a lot of work to get it elsewhere. You'd have to have DirecTV or Cable installed - more commitments, bad installs, stupid CSRs, new equipment that works differently or poorly. It's a major change - and the new provider may not have other channels that Dish still carries.
But, if Dish Network PPV doesn't have the movie you want to see, in 10 minutes you're at Blockbuster, or in 1 minute, you are clicking on "add" in your Netflix account.
So, Dish Network has no leverage with regards to PPV rentals.
If you think that Dish did not complain about it, then why is Dish the last to comply with it ??