For several years I have been attending EHS expos. They generally are kicked off by a rotating group of speakers who have an impressive list of companies and organizations to which they consult on EHS matters.
The Penn State topic is way too complicated to sort out in a short email. (It may never be fully understood). At one time I worked for a large construction company that had a good safety culture, yet when there was an issue of challenging a client on unsafe procedures the construction company always backed down.
I try to stay abreast of the safety profession by reading several magazines and websites monthly. In addition, I am fortunate to talk to a number of highly skilled safety mangers on a frequent basis and I blatantly pick their brains as much as possible.