The word ‘professional’ has connotations of skill and excellence.
The very word philanthropy does not necessarily have 100% positive connotations for the public at large given where we are in terms of the public's attitude towards business or the banks and that kind of stuff.
The definition of a connotation is an idea suggested by another idea.
A possible connotation of “home” is “a place of warmth, comfort, and affection.”. An example of connotation is the name Hitler being associated with negative images.
The connotation of the word "nationalism" is often negative.