Ransom == Bounty
While it might work for "code it and leave it" projects like games, it won't work for most ongoing software projects. Let's say there was a ransom for Apache 2.0. Great, the developers make some money, the world gets a release. Now they want to work on 2.1 and demand another ransom. Screw that, say the users, I've got Apache 2.0 (under the Apache license, no less) to hack on, I'll make my own 2.1.
The ransom model works if no one's willing to do the work for less (or nothing) -- making it essentially the same as a bounty system in those cases, and futile otherwise.