That seems to lead to a logical cycle. What is the function of sanctions? To modify the behavior of other agents. Why do we want to modify the behavior of other agents? Because we find some actions undesirable. Why do we find them undesirable? Because of their consequences, or because they violate established rules...
For us hybridist, it is the function of cosequentialism to justify rules, and the function of rules to justify sanctions.
That seems to lead to a logical cycle. What is the function of sanctions? To modify the behavior of other agents. Why do we want to modify the behavior of other agents? Because we find some actions undesirable. Why do we find them undesirable? Because of their consequences, or because they violate established rules...
Not all cycles are bad.