I think you have left out a third, which the GP was alluding to, and which I see written everywhere in UK lending literature:
3) Lending "responsibly", where responsible means protecting borrowers by not allowing borrowers to get into more debt than is good for them. (As opposed to responsible being for the lender's benefit.)
There's a paradox in this, because it exarcerbates some problems that it is supposed to be helping with (the assumption is it's to protect would-be borrowers from problems).
For example, if someone has multiple high interest loans with different providers and would like to convert them to one lower interest loan with a longer payback period (a consolidation loan), that would be good for the borrower. It would be a responsible thing to provide that. But it's all but impossible for borrowers who would be most helped by these to get one.
In the UK it is has been the law for a few years that lenders are not allowed to lend to private borrowers without evidence that the borrower can repay, regardless of what criteria the lender would like to apply. This is separate from credit risk assessment, and is done after the borrower has been approved for the loan. The result is that a number of borrowers would could pay, are no longer able to obtain good quality credit because the necessary evidence is too difficult to provide, and end up in a more vulnerable situation as a result. For example, self-certified mortgages for self-employed small-business owners used to be a thing, now borrowers in that position can only get a foreign self-certified mortgage, with significant loss of protections. Personal loans are subject to income proof now, which mean people with variable income use credit cards instead at much higher rates of interest.
The mortgage thing, combined with high property prices and very low interest rates, has widened the "haves and have nots" gap, where those who managed to get a mortgage at some time have much lower property costs and falling while gaining equity, compared with those who didn't get one and are trapped with high and rising rents. It would seem responsible to offer the latter mortgages when they have shown a long-term pattern of consistently paying higher rents than an equivalent mortgage, but it is not taken into account, bizarrely.