The corporate form is pretty much tangential to this, relevant only in that that form is often attractive to widely held (in terms of equity distribution) firms regardless of distribution of authority, and the more widely distributed authority is (which often roughly parallels equity distribution), the more likely that the only shared interest (or at least, the most salient shared interest) is financial profit. But, conceptually, you can get the same issue with big partnerships, LLCs, etc. -- or even small (in number of partners/members) ones and sole proprietorships, where that's all the partners/members/owners care about.

There's an interesting observation about audience selection in here somewhere. Your typical hacker tends towards progressive politics and attitudes, and would be likely to condemn price gouging. "Hacker News," though, is associated with Y-Combinator and disproportionately attracts the Valley-startup/venture-capital/exit-strategy subset of hackers, who tend a lot more towards Objectivist-libertarian profit-obsession, so you get what you see here.