I knew the senior Kristol's work from that later period, when he was a founder of the neoconservative movement. Reading Irving Kristol's essays in The Wall Street Journal was instrumental in changing my views of the world.
Thinking of that "conversion" I am reminded once again of Winston Churchill's wisdom:
If you are not a liberal at 20 you have no heart, if you are not a conservative at 40 you have no brain.
I read Kristol essays on the op-ed page of the WSJ as a young B-school academic. Irving Kristol helped me make the transition from liberal to conservative, from heart to brain.
I think the key learning was to understand that we humans are easily corruptible, easily spoiled by handouts and freebies. What we earn we value; what we are given we don't. If you would destroy someone, put them on the dole. Strength is respected, weakness is despised.