Vinjay, I'm hardly going to start naming people on here but suffice to say that an immediate relative of mine was a very senior manager at Walkersteel for 25 years. Believe me, Jack was a ruthless bastard of a businessman when he needed to be. And on occasions when he didn't need to be, too.
Jock Stein? You think Shankly, Clough, Revie etc etc etc (the list from that era is almost endless) weren't also bullies (by modern standards). It has become obvious that Stein turned a blind eye to some seriously wrong things that were happening in the shadows of Celtic Football Club in the 70s early 80s as well. None of which is relevant to what we are discussing, really.
Going back to the Walkers - One of the reasons Jack is 'well regarded' by many is because he played the good cop to Fred's bad cop. And if you think he didn't approve of or was unaware of any brutal decisions then you're even more naive than you come across.
Without wishing to totally derail the thread, the notion of "Jack Walker = good guy, his family = a bad lot" is a twisted distortion of the actual truth, which as ever will be somewhere in the middle.
The only general thing about them I would say is that pots of money inevitably causes trouble and bad behaviour somewhere along the way, whoever you are.