It's not another way it's an example of the same way. Property rights are a common agreement. Certain individuals own certain things. If an individual violates that agreement about who owns what, they get punished.
For environmental pollution the system is cap-and-trade.
As far as big pharma goes patents are also a crucial part of the system.
I think it'd be a good idea to keep a list of the ways we'd like to see LessWrong improve, sorted by popularity. Ie. email alerts for new responses.
So if you have an idea for how LessWrong could be better, post it in the comments. As people up/downvote, we'll get a sense for what the consensus opinions are.
I think there's a pretty good amount to be gained by improving LessWrong.
Note: I say "ways to improve" instead of "features" because "ways to improve" is more general.