Earlier quoted context omitted.
A lot of people are assuming the worst intentions here but anyone who has worked in an enterprise knows sometimes it's useful to build tools for your use and not to share. The tool might not even be allowed, C# is probably not in the supported platforms and even if it was, getting it into the official repos can be arduous. If OP really cared about maximizing everyone's productivity of course they would share the tool…
The question I have is how did incentives get so misaligned that this person feels that doubling the productivity of all their peers is unlikely to be worth the effort of presenting a tool.
Management can break the law, leave with their bonuses, and years down the line 'the company' gets fined.
Employees are the ones that might be there for decades, but the anglosphere shareholder model allocated 0% stake to employees.
TThere are alternatives:
Codetermination in Germany is a concept that involves the right of workers to participate in management of the companies they work for.