By allowing country's to administer themselves and by building infrastructure for the country to use. Basically by making things better.
Alexander the great did not conquer Rome or ancient Rome.
I think you are confused. Rome is in Italy. They didn't conquer themselves.
Rome was weak "morally."
No
Yes.
Ancient Rome conquered 31 countries.
alot
Macedonia.
most of europe
31 countries
The Hellenistic Kingdoms.
Gaul