This is an interesting thesis. I think fear interferes with thinking generally, but sometimes stress can be the “mother of invention”.
Creativity is all about change – making something new or finding a new way to do something. Conservatives, by definition, don’t want change, they want things to stay the same. So I’m not sure about the assertion that conservatives want people to be creative. Conservatism tends to emerge more when there is more change going on. They feel it threatens their “way of life”.
Yes, economic systems in free countries work on the assumption that competition will drive people to be more creative so as to become more competitive, but ironically, when new ideas come forth the incumbents often feel threatened and become reactionary.