You seem to be stating, with the authority of a highly experienced subject matter expert ("the reality is…"), that disclosing salaries will cause employees to a

You seem to be stating, with the authority of a highly experienced subject matter expert ("the reality is…"), that disclosing salaries will cause employees to act "irrationally" and "get the entire business derailed". It's not immediately clear to me what exactly you think the consequences of publishing salaries are, what bad behaviour you think this promotes, and why you suspect this bad behaviour happens. Could you please go into more detail?