The single-most difficult task HR or university admission has to handle is: how do you judge the soft skills of a job applicant or a student?
Imagine a single number that would help, particularly in business etiquette, empathy or intercultural awareness. It is called the 'World Civility Index', which is now a part of UN Sustainable Development and is used in 17 countries as of 2019.
Example: https://www.iitti.org/show/certificate?laury07