This is an interesting diagram and my initial thought is that they are all correct. For example the rich often have good education, capital and connections so for them hard work is most important. But for the poor no amount of hard work will turn them into Trump unless they somehow gain the education and connections first.
A much better visualization and discussion of the underlying data is linked to in the Reddit comments:
This is a r/dataisbeautiful submission... but that chart is super bad? Why is it even in chart form? The top half of the image tells you everything you need to know.