Isn't one's outlook on life subjective to their values? do you have proof showing that creativity improves when basic needs to sustain life are met? Not necessarily to disagree - but creativity is a different beast of psychology than operating to maintain homeostasis. Often the absence of sustaining infastructure is the seed for the creative mind to improvise - to retain a sense of value despite a loss of presence (at least I've observed often)Because, it has been proven that once the stress of meeting basic needs is met, people's health improves, their outlook on life improves, their creativity improves...
I can't give you the direct link due to mobile viewing, but the relevant topic is under "Opinions on Psychological Effects". So far, both of you stated differing, (in your own words) subjective beliefs on what engenders creativity. Clearly, experience gives different opinions, and theven closest thing I could find was an opinion on the matter. That said, I'd welcome you to join me in searching for supporting or opposing evidence. That's what discussion is all about, right? :)