How would a Buddhist leader act?

To preface this, I think there are many good things about Buddhism. It has helped me tremendously, and I would consider myself a Buddhist, since I haven’t found anything that comes close in terms of helping people become free from suffering. But so far, I haven’t been able to find a satisfactory answer to this question.

Not harming beings is one of the important aspects of Buddhism. We should act in a way that is kind and generous, and avoid any kind of harm or even selfish behavior that isn’t going to benefit others. Acting in this way is said to generate positive karma, which will benefit us in future lives, and also benefit others.

But when we look at world leaders, or any kind of leaders for that matter, they have to make some very tough decisions. Sometimes those decisions are ones like protecting their country while harming others in the process, or instead allowing attackers to harm their population while trying to avoid further conflict. Generally we see that those who are “greedy” tend to be the most successful. Countries who invade others for their resources or land end up having a wealth of resources and gain economical superiority. So should a Buddhist leader (for example) act in the best interests of their own country, or try to “do good” while sacrificing potential wealth, freedom and resources of their country?

It’s easy on a personal level, since you can just sacrifice some personal success and wealth, and act in a way that benefits others the most, while just making sure that you’re in good health. But when your actions can affect an entire country for example, you’re now deciding between whether to benefit one group of people versus another.

Just curious, since I was thinking about what an “ideal”, benevolent country and leadership would look like from a Buddhist perspective, and I couldn’t really come up with anything.