An environmentalist named aldo leopold believed that we need to develop a "land ethic" that "changes the role of homo sapiens from conqueror of the land-community to plain member and citizen of it." what sort of attitude is leopold trying to move our society away from?

Leopold was trying to move away from the idea that humankind was a sovereign whom all of nature had been entrusted to for use. This view, that man had dominion over nature, implied that nature was valuable only to the extent that it was found valuable to human beings. This could mean that land would be preserved if human beings found it to be beautiful or useful for recreation, but it also allowed that land could be ruthlessly exploited and resources exhausted if human beings believed doing so to serve their interests.