I wanted to echo Professor de Beer's comments that although you've asked about the courts and enforcement, one of the reasons the courts are so complicated and busy is because of insufficient education.
Many of the people I deal with just don't know what their rights are. The kids are downloading stuff from the Internet, and they just don't know--and their parents aren't so sure either. So we don't grow up with an appreciation for where the borderlines are for intellectual property.
Again, although I understand that your question is directed toward our justice system, our justice system would be less pressured if we had an understanding of the borderlines of intellectual property that is owned by individuals.