I think changing those things changes the character from a solidly "middle American" person to a member of a fringe element of society and that the writing of said character would have to reflect that. Otherwise why bother?
YOu do realise that the character started as a "Super-Roosevelt". A very liberal and radical character (for it's time). He's also a reporter for East Coast newspaper. His "orgins" are hardly "Middle America"
Though He's not the first character to be sanitized after success.