I personally think "selling out" is a bit more subtle than that, in my mind it's not about just making money, a tech company can sell out if it takes money from

I personally think "selling out" is a bit more subtle than that, in my mind it's not about just making money, a tech company can sell out if it takes money from an entity and breaks promises that it made to it's early / current users, be they written or less spelled out. Maybe your initial userbase was a bunch of hard core privacy people and post funding you start selling user data, or performing other actions which makes your original users or the people that supported you go, "wait, that's not the company I championed to success" It's not exactly cut and dried when put like that, but there are a few companies that come to mind that effectively "sold out".