I'd like to supplement here.
One thing that I think ought to be part of the equation is that the leverage ratios of the chartered banks are higher than they are at the BDC. Sometimes those aren't apparent because much of the bank's leverage was realized through these off-balance-sheet structures that one doesn't see, but of course they're the source of many of the problems these days.
So it isn't an obvious apples-to-apples comparison.