As a side-note to the existing great answers. If a deontological constraint simply prevents you from taking an action under any circumstances, then it might as well be a physical constraint (eg. you cannot fly).
Operating with more constraints (physical or otherwise) gives you less power, so typically results in you getting less of what you want. But if all agents with limits could be money-pumped, then all agents could be.
As a side-note to the existing great answers. If a deontological constraint simply prevents you from taking an action under any circumstances, then it might as well be a physical constraint (eg. you cannot fly).
Operating with more constraints (physical or otherwise) gives you less power, so typically results in you getting less of what you want. But if all agents with limits could be money-pumped, then all agents could be.