We have no 'worst jobs in the world' compared to the poor souls who live in other countries.
Think of the men, women and 'children' who have to scavage polluted rubbish tips to find items such as plastic containers, electrics, cables etc., you name it whilst sucking in deadly toxic fumes. Then go 'home' to a hovel, if they are lucky!
Children who are purpously maimed to go out on the streets to beg or those who are prostituted , yes I do know the latter happens here but the scale of this is astronomical in other countries.
So many deadly jobs we couldn't, wouldn't do but some have no choice to do them to simply survive. So many have to leave their families and children for years on end.
We can choose not to do a job because we don't like heights, can't see animals suffering, can't touch other peoples body parts, can't touch dead people, but others don't mind and elect to do jobs such as abbatoir workers, doctors, nurses, under takers, paint the forth bridge, coal miner etc. How lucky a nation are we!