I would like to debate with you on the fact it is for their own benefit.
Now then, I would have to disagree with you on that. We are all selfish creatures, so what makes us different than them? We just play the game of the pyramid scheme all the time. All we want is to co-populate in life and produce children.
My Argument goes as follows; The global bankers are doing their best to provide for their families with the luxury of wealth.
Since I do not understand your position, I will use a common piece of rhetoric used by republicans to assert my next argument; Trickle down economics.
Trickle down economics is the idea that economic benefits provided to businesses and upper income levels will indirectly benefit poorer members of society when the resources inevitably "trickle down" to them. Though this is theory as of now, there is an argument to support this:
If high income earners see an increase in disposable income, they will increase their spending and this creates additional demand in the economy. This higher level of aggregate demand creates jobs and higher wages for all workers.
Alternatively, increased profits for firms may be reinvested into expanding output. This again leads to higher growth, wages and incomes for all.
Lower income taxes increase the incentive to for people to work leading to higher productivity and economic growth.
A fair amount of people who will support this. So let's call this a fairly valid argument?