Unless countries are led by intelligent and conscientious people, we will see more wars and attacks. Someone is constantly looking for an excuse to wage war. While he sits in his modern chair, it is soldiers and security forces who are dying. If a leader can take personal risks, then let him fight.
The people who want political power are already generally corrupt and vicious in the first place. Intelligent and conscientious people generally either do not want such power in the first place, or quickly find themselves corrupted by the perverse incentives it offers.
This can't happen, until the population is intelligent and conscientious first at the very least.