If those principles don't make a difference on the world around you then it's not
bad but it is
quite limited. It's fine to do things that don't make a difference, but it's important to keep perspective.
In particular, if you have an urge to make a difference on a regular basis, that's a great urge, but you need to make sure you don't fall into the trap of doing something that feels good but has negligible effect and thinking the job is done.