[vetrom]

On a modern OS (like anything in the last 25-odd years that has demand paging) that code isn't even loaded into RAM before it's used in many situations.

While that is an additional load if you deal with those formats, the root of things like startup and runtime bloat lie elsewhere.

[EmpirePhoenix]

Well one should also consider, that a really large amount of code and complexity is that current applications properly do i18n.