No, it is not a boards fiduciary duty to maximize profits at the expense of all else for stockholders. This is a myth.

There is no legal basis for this claim.

https://hbr.org/2010/04/the-myth-of-shareholder-capitalism

So to take your differently put question, would I buy stock in a company that doesn't act this way? Hell yes I would. It means they're likely adults and not just looking out purely for the bottom line. Which tends to lead to bad results.