I have not, in any of my education, come across the notion that (as OP was responding to) corporations were allowed due to a belief they would increase the net utility of society (or specifically in this case, that decreased Netflix hours watched would be a net utility objective that would’ve been in the realm of things a corporation was initially intended to be formed for).

The reasons for corporations to spread beyond royal charter to arbitrary creation by the general public had to do with lawsuit administration and limiting liability. Prior to corporations, partnerships were the primary form of organizing and when they were sued each partner had to be included separately which was cumbersome and many partners had nothing to do with the operations or activities that gave rise to the liability.

The legislation which codified the above is credited with a massive increase in company formation and capital allocation in the 1800s. The presumption being that things that were once deemed too risky when there was unlimited liability were no longer as risky.

None of what I’ve written here is “modern ideology” unless by modern you refer to the 1800s.