It doesn’t, but if one can bring glory to Hashem while looking good to the goyim, then go for it. Be polite. Don’t let your kids run amok. Look for ways to get along with your neighbors.
Because the opposite looks bad to both goyim and to Hashem. People who are rude, break laws, etc. get into the news and on Facebook, they make everyone look bad, and where is the holiness in that?
It’s up to every Yid to life an upright and respectable life. That will both look good to Goyim and bring glory to Hashem.