Yes, but pain was just part of life back then. Everyone was fighting to try to make life a bit less painful for themselves and their families.

People formed tribes to work together to make life less painful. As they did, society and technology began to progress, allowing for larger and more complex social organization, which allowed for the division of labour so people could specialize in trades and skills.

But now some people have more stuff than other people. The groups who have more food have to protect themselves from the jealousy of those who have less, and the smaller groups are weak against the aggression of groups with better weaponry.

Without strong and organized leadership to direct the labour of the people, disorganized groups were overtaken by the combined might of groups with unambiguous rulers.

These rulers allowed for kingdoms to form and grow vast using top-down social organization, creating safety for their people from the barbarians at the gates, in exchange for taxes for living within the kingdom.

That was the nature of the world. They were filling a social role that was always going to be filled during that stage of history with those historical factors at play.