Which folk culture group lives in communes in rural areas of the Upper Midwest and will readily adopt more modern technology, but only if it benefits the commune as a whole?

Amish culture

Explanation:

The Amish community are known for their simple ways of life which is evident in their dress type which is always plain, no exotic housing and are always reluctant to adopt new technologies except if it is unlikely avoidable by the whole community, for example the need of light for their farm activities warranted them accepting power technology.