They empower women. Because chickens are small and typically stay close to home, many cultures regard them as a woman’s animal, in contrast to larger livestock like goats or cows.Chicken raising may make sense for a family in a third world country, but why stick in "women empowerment"?
It's about the division of labor, it just makes sense that women work with the physically easy to deal with birds.
It's not as though tribe members sat down and debated "How can we empower women so they have strong self-esteem?"
Division of labor simply divides up labor in the way that makes the most economic sense. There is no "women empowerment" going on. It out about increasing a standard of living of a family.
In different countries, that labor division will be different.
Gates is thinking like a bird brain here.