I think it is good for our living on earth that one day we keep either “metric system” or “imperial system” and saying good bye to the other one. I guess it brings a better understanding and communications. But, we are mostly do not have same idea about cultural features like arts, music, clothing, foods, etc.
The other thing is that some ethnic people in developing countries think that westerners would rather that the "others" keep their traditional way of life to have fun in their visits to strange lands. What’s your opinion would you keep your traditional way of life even if it’s demands hard work and harsh way of life?
Tradition is a huge concept and I think the problem starts here. I present an example:
When we say tradition it also includes water supplying for villages in remote area of developing countries. A number of traditional water supplying particularly from rivers and well involve spreading disease when we compare it with developed water refinery systems. Do we prefer that those villagers keep their traditional water supplying? This is only one instance I provided here to clarify a bit my point.