Some people seem to be looking for an audience to appreciate and applaud them for doing the right thing. They wear their good deeds on their sleeves as a type of badge for all to see and will at any opportunity seek to tell others.
It can be a type of insecurity when we need the approval of others to feel good about ourselves or to elevate ourselves over others. We can also keep a list of good deeds without telling anyone else to remind ourselves how good we are. This is no different than bragging about our deeds.
However the true unsung heroes are just quiet individuals who do the right thing simply because it is the right thing to do and then promptly let it go as not important enough to keep track of it.
When we take our needs out of the equation then doing the right thing is simple and direct.