The Five Most Important Jobs

Oh, my goodness North Korea has just hit the whole world with an A bomb. It back fired and didn't kill everybody. I lived and i hope some other grownups did too. We need at least five important jobs. The five are doctor, leader, scientist, farmer, and carpenter.
We have to have a doctor for people who are hurt or sick. If we didn't have a doctor the world would be a mess. It would be hard to live without one. We would defently need a leader to help the people who lived or everybody would fight. A leader could prevent fighting among people and unite the living.
A scientist would help the quality of life. He could reinvent things like cars, planes, electricity, and all sorts of things. A farmer would be very helpful to life on Earth. He could reeshtablish agriculture. The very little food we had would become aboundant. Last we would need a carpenter. He could help people build selters. He could also be very helpful with making permanant homes and teach people how to do it themselves.
If you had an occupation of those five please help the world. I don't want to die because I'm sick, starvation, or die in a war.