Yuan Longping's breakthrough happened in the 70s. The great famine happened in early 60s.
I'm not sure what your post is about.
I'm not sure what your post is about.
As a further example, the job of a firefighter is to fight fires as they happen, not to help the UK forever recover from The Great Fire of London.
Take your ideology crusade elsewhere.
"Fighting famine" is a generic term. His contributions prevented future famine. That does count as "fighting famine", doesn't it?