Some people live to be served as if they have some god given right to it.
Some people live to serve as if it is their mission in life given to them by god.
Somewhere in the middle is where you find the true Kings and Queens of this world.
Living in service and yet humble enough to accept it when others show up to serve them.
The difference is people who use terms such as Goodwill Ambassador are looking for you to serve their life based on the title they gave themselves.
I was born a Taltos and I serve all around me and expect no one to serve me, however if they show up to do it, I let them.