Like poker, math only takes you so far in sales. You have to learn people if you want to succeed at selling. In fact, math is all but irrelevant for most person to person sales. Buying decisions are mostly emotional. Learning people is a skill that will translate to every other aspect of your life.
this is a bad analogy. at the highest level, poker is entirely math. the player with a better understanding of GTO will demolish someone who tries to "learn people"