ですから、聞く構えができている人は、より良く学べることにもなります
As far as I have learned, ことになる indicates decision, but in this context, it seems the sentence doesn't fit into the pattern.
Japanese Language Stack Exchange is a question and answer site for students, teachers, and linguists wanting to discuss the finer points of the Japanese language. It only takes a minute to sign up.
Sign up to join this communityYou're right, ことになる can mean to make or come to a decision. But it also has other meanings too. With the simplest meaning ことになる can literally mean to "become a thing" or "become the outcome / result".
So here it's roughly something like:
ですから、聞く構えができている人は、より良く学べることにもなります
Because of this (what was mentioned before), people who are able to readily listen even have the outcome of being better at learning.