What are the benefits with Lime's libraries or it's ideal use case?

I was playing around with the XML Format specifications and I was wondering, what are the potential use cases that I could benefit from Lime? what was it intended for or how organizing assets with said feature would help to load, instead of dumping everything to the default library.

In non-gaming scenarios it can be useful to construct a library that only loads the assets you will actually need, and load it only if and when you need it. In the end, it results in a quicker web application and reduced memory usage.