Patton's managment style isn't really germane to the modern office. If I had the power to throw office miscreants in the stockade, send them on punitive 20-mile marches, or just plain slap 'em around, well I wouldn't need diplomatic skills.
If you have to yell, there's only thing worth saying: "You're fired!"
I'm in the USAF. The USAF doesn't allow (formally) additional duties as punishment unless full proceedings have been held. Hitting a person is also a no-no. And I don't have the option of firing a subordinate for being stupid, nor do I have the option of hiring who I want. I have to take what I get, and then get performance out of them regardless.
That is why the fine art of @ss-chewing is worth learning. Used correctly, it gets the job done on someone who would take years to learn by my good example - or would never learn.
There is also nothing wrong with well-earned public humiliation. It can set standards and encourage others to perform.
Leadership has no universal rules. Different people respond in different ways to different actions - it is up to the leader to reach into his bag of tricks and find the way that works best for each individual.
I've seen too many ignorant goofballs straighten out after a good chewing to believe it is 'always' wrong. And I've talked to too many senior NCOs who say their lives were turned around - in a positive way - by someone who kicked their rear end until they learned to perform without it.
Must be nice to be able to choose who you hire, or have quiet talks that inspire future performance. But when you're out in the field 10,000 miles from home and you have a boat anchor in the group...well, an attitude adjustment can be in order. My all time favorite that I heard about was when some guys grabbed a 'boat anchor' type and threw him into the slit latrine & told him they'd do it daily until he got his act together. Needless to say, he started working harder right away - and the senior NCOs & officers had the good sense to look the other way.
Wonder what the 9th would say about that?