The first link is discussing whether directors have a legal duty to maximize profit, which, as the article describes, they do not (their duties are open to much broader interpretation, which the article also describes). But, of course, there are numerous nonlegal forces that incentivize profit maximization, some of which are noted in the aforementioned article, and these forces are so strong and ubiquitous that their result - profit maximization - should be taken to be the default, which is what GP was saying.

Second, a random statement from Tim Cook, which itself is the subject of numerous forces and incentives, is hardly a strong case against the argument that, almost universally, corporations act to maximize profits (which, we as Americans, also often pretend is a universally pro-social motivator).

I'll also note that both of your sources focus on short-term profiteering (e.g. ignoring long-term benefits of renewable energy in favor of short-term profits), but are actually supportive of long-term investments, which are, of course, made with the purpose of increasing future profits (e.g. " it is [...] not corporate law [...] that [drives] so many of today’s public companies to myopically focus on short-term earnings; cut back on investment and innovation [...]" and "thinking in terms of long-term profit and returns is an important way of putting society’s resources to their best uses"). Focusing on long-term investments, in both cases, is obviously also motivated by profit (with the second arguing that long-term profits are actually a social good, which is the case only when compared with short-term profits).