Is it dark intentions when the nature of a company is to make as much money as possible? The banks want house/land prices to go up so that they can charge one a

Is it dark intentions when the nature of a company is to make as much money as possible? The banks want house/land prices to go up so that they can charge one as much in interest as they can get from one's income, whilst making money on any land/property capital appreciation that they have. This is just capitalism surely. My solution - nationalise the mortgage lenders and cap the mortgage to a 3 * multiplier of annual earnings.