A statutory duty to increase profits as much as possible within the legal framework "requires" you to come up with strategies to artificially decrease recorded

A statutory duty to increase profits as much as possible within the legal framework "requires" you to come up with strategies to artificially decrease recorded profits to pay less corporation tax? Rrrrright.... I mean, there are literally millions of companies worldwide that aren't even remotely tax efficient never mind inventing artificial royalties to shell companies in tax havens which they could if their directors wanted to... why are they not being sued by their shareholders? Could it be because actual company law allows management an enormous amount of discretion in how they run the company, except in cases of obvious conflict of interest or failure to care? And not deploying aggressive tax avoidance strategies isn't considered to be conflict of interest or failure in a duty of care anywhere?