Definition of culture: the sum total of ways of living built up by a group of human beings and transmitted from one generation to another.
Sounds like language.. is a just part of culture.
As for the "bad" language and "good" language? The german language is called harsh becaus of the way it sounds.. listen to it.. the words are all cacophonous. As where the french language.. the words are softer in context.
Spanish and swahili happen to be My favorite languages. As for why? I just enjoy listening to the melodies and clashing of words..