"Por favor gente se necesita que los ciudadanos voten para obtener mejoras. Ya que soy el único premium hago lo que puedo. Ayudenme por favor y así nos ayudamos todos. Votar no cuesta nada y al votar les dan energia y un poco de oro."
This bonus is a reward the country pays from its budget tied to a citizen's energy. The value is how much each reward pays out.
Raising the value pays a bigger reward each time, which makes the rewarded action more attractive but spends the country budget faster.
Lowering the value pays a smaller reward each time, which saves the country budget but gives citizens less incentive.
This is a neutral explanation to help you decide — it doesn't favor either side.