The oddness of the harley davidson "culture"

I have difficulty understanding the logic, if you will, of  Harley Davidson motorcycle enthusiast's behavior.  They most generally claim to be Vietnam War or Gulf War veterans yet they desecrate the American Flag for "dew-rags" and they seem to be oblivious to the mismatch of the horrendous noise and confusion of battle and the noise and confusion they surround themselves with when riding their "hogs".  They claim to have "fought for our freedom" yet they trample the rights and freedoms of the majority of citizens who find the noise they make intolerable.  They don't seem to appreciate the rights of ordinary citizens to 'quiet enjoyment" of their property and communities.
How can this be explained?