As developers, we often ask for more resources from the infrastructure & operations (I&O) teams than we really need so we don't have to go back later and ask for more - too painful and time consuming. We also often don't know how many resources our code might need, so we might as well take as much as we can get. But do we ever give it back when we learn it is more than we need?
On the other hand, I&O often isn't any better. The first rule we learned about capacity planning was that it's more expensive to underestimate resource needs and be wrong than to overestimate, and we always seem to consume more resources eventually.