The languages don't directly influence the aesthetics. Rather, there's a culture that precedes a language, and the audience it attracts, and it defines the mark

The languages don't directly influence the aesthetics. Rather, there's a culture that precedes a language, and the audience it attracts, and it defines the marketing of that language, among other things. Of course, there's always interaction and mutual feedback. But I'm just saying I don't see this as the high order bit. In the case of Ruby, in fact the culture didn't come from Ruby, but Ruby on Rails, which marketed almost exclusively to non-programmers. "Classic" programmers suck at design.