This improvement happens to Housing style, mode of dress style, dancing, singing and many more. Another thing is how to handle and raise the next generation.
From what I read from history, Culture was considered to be a hindrance to the development of society, especially, when it comes to respecting elders and alike.
As you know when an Elder declares something, then that is law even if it's harmful. This was advocated by many Western Countries.
In truth though, the reason for that was Bad Elders or Corrupted People in power. The moment a person of value sat in a position that commands respect. He sat to serve himself, for the most part, he will use the Culture's Code and boundaries to his gain.
And since culture was ingrained in children from birth, they end up being misguided and taking advantage of as they grow.
But, in Nigeria, with the Tribe System, they do differently to a certain extent.