The permissions for handling financial accounts are: to “see” the transactions on the account; to be able to “create a move” of funds from and to the account in question and to be the “MOL” of the account.
If the Materially Responsible Account Person option is selected, this makes the other two options automatically selected for obvious reasons. For compatibility, there are also checkboxes “on top” that make the corresponding option valid for everyone, something we do not recommend in principle, but is available due to unification of interfaces in the system.