Is there an algorithm

[robvalue]

You would first have to define how you are reaching your answer. The first question would be whether you are interested in where each person ranks in each category, or their actual figures.

If you were going by ranks, you could define the "least rich and most successful" as the person with the minimum result for adding the two ranks together.

If you were using the actual figures, you will need to define a formula which produces a single number from both the figures.

So I would say there is no "correct" way of combining and comparing the two, but algorithms could be made once you've defined how you will weight each one.