> (This difference possibly shows the more fundamental difference in the cultures, where one values truth more, and one values agreement/harmony more.) I'd be

> (This difference possibly shows the more fundamental difference in the cultures, where one values truth more, and one values agreement/harmony more.) I'd be extremely wary of ascribing any cultural significance to the language modes here. Negation and especially affirmative/negative responses to negative questions is just extremely variable among languages. Even languages in the same language family just end up doing it differently.