This come under sir James personal responsibility ethics, the ethic he lived by was simple care for those who care for you. I think the best way to explain his out look is by example and extension sir James was a business man and the kind that always maintained a closely held plan he owned all his business as single owner he did this so that he could make his decisions without consulting with any one but his employee and there needs by this method every thing he owned brought in 10% after tax every employee received between 3 an 19% increases in earnings and other compensation. and god bless her Mari is on track to do the same by following his method.
Now by extension what do you owe those who have given you there body and soul? Do you not owe them more? So he came up with a formula to compensate his subs I am not going to tell you more then it boils down to 10% of his yearly income placed into a account to be payed only to them and started with enough to buy a place and maintain it for 1 year but he recognizes most can't do this but the 10% rule can be done if you can't afford this you should rethink and wait to take on the responsibility of a sub unlike other possessions you can't buy a sub on credit.
questions and private comments may be addressed to me.