A business corporation is organized and carried on primarily for the profit of the stockholders. The powers of the directors are to be employed for that end. The discretion of directors is to be exercised in the choice of means to attain that end, and does not extend to a change in the end itself, to the reduction of profits, or to the nondistribution of profits among stockholders in order to devote them to other purposes.

This was pulled from Case law on the fiduciary duty of directors to maximize the wealth of corporate shareholders with a few more cases sometimes in favor of the business and others in favor of the shareholder. If anyone else wants to read some more on this. Reading some more based on what searches I find it seems like in reality it complicated. But I’m just a individual contributor all of this is above my knowledge grade.

I do agree though that this model is not realistic long term. Eventually you need to jump into other markets to continue your growth or just squeeze your user base / customers dry.