Commercial example: Sometimes bigger is better.
This happens with what’s called “economy of scale.” Buses, for example, are less wasteful than cars – but only if the buses are effectively used by people who would otherwise drive cars.
Multi-purpose buildings may be larger than buildings designed for a single purpose, but are less wasteful if well designed and managed.
Also, buying in bulk creates less waste, but only if the product is actually used.
If demand assures use,economy of scale uses less material to do a job, and bigger is better.