I would say this is frequently even the case for big picture employees.
I'm saying this also as the lowest compensated person at my company for ~5 years.
To me it's more of an ideal world vs real world. Ideally you can share everything, in reality the outcome is likely to have a negative impact on both employee satisfaction and profit. Ie most likely giving employees a raise and them still thinking they aren't getting enough due to them seeing the big $ in the bank.
My preferred approach is budget level (we can spend x on y, I am open to your ideas) and number light executive summary (we have x months runway, not we have y in the bank). You can also give someone a smaller piece of transparency and see how they react if you think the employee could be someone with the skill set to manage a budget in the future.