The Credit Underwriting industry is able to quantify financial well being of a person by deriving a Credit Bureau Score like FICO/Vantage from all of his/her financial data.
The following score can be used to compare Credit Capability of different individuals.
Strava has tried to build something similar for workouts, i.e. Suffer Score. The following article provides an overview on how Strava tries to solve a Semi-Supervised Problem.