- "...to a greater or lesser degree"
- "...some more than others"
- "...some a little, some a lot"
Oops - let me correct that! I think he means to say : people count on me, usually a lot/quite a bit/to a rather large extent/not just for the little things/and pretty seriously.
Does that make more sense in the context?
I think the "plus ou moins" is a little ironic, as I think people generally expect great things from an Emperor. and are often disappointed .