Very interesting post, But the thought could also be that this argument it mooted by the more likely fact that there has been a significant decline in creative dynamism. People are less likely than ever to create new products or business (see source - https://goo.gl/WNn710). The trend in decreasing boldness of consumers to create new products is justified in the massive outputs that modern corporations have. With the advent of the modern consumer internet in the time period that you are suggesting we see a rapid increase in globalization and global trade. This would represent a much larger culture of interconnected device people use to communicate and trade, making it much easier to have a similar style to one that's already proven compared to one that is more experimental and could warrant some form of criticism. This is supported by the fact that we live in an ever connected culture that is happy to criticize somebody they've never met over bold decisions they make that doesn't work out.