I think things like The Ministry School helped me in business, and public speaking. It also made good sales persons out of a lot of people (If you can sell Watchtower's, you can sell anything) and PR with people in general is easier.
Of course, the Society's motive for the training was for their own interests and agenda. But the education can backfire on them as they have trained the so-called 'apostates' and it is not working in their best interests.
Outaservice