Moreover, Gabe Newell always had a controlling stake in Valve ever since 1996, so that prevents any shenanigans. There are comparatively few shareholders (than a public company) and they were all long-term, since Valve will likely never go public, certainly no year soon, or even be privately acquired; while Newell controls it.
In this instance your complaint is about corporate governance rather than tech; (how far back did tech people stop being in control at Sierra?)