Leaders who don't have any authority to compel others to act are not leaders. They are simply people opining stuff. Mob bosses assume that authority, but don't possess it legally.
NO ONE has authority to command illegal or immoral behavior. No one.
However, leaders do possess a measure of
shaping practical legality, at least within the limits of their punitive authority.
I remember when I was stationed in the Philippines, for a couple of weeks the Filipino workers stated a strike against the US facilities at Clark Air Base and Subic Naval Base. They barricaded the gates and prevented anyone from entering or leaving the bases. In order to prevent violence, the base commanders ordered American personnel not to attempt to cross the barricades or to cross the fence lines at any other points.
This caused a problem because about 1,000 American military families lived off base. The water off-base was untreated and undrinkable, so the families had to transport jugs of drinking water from the base every day. And many of them, particularly the junior enlisted families, didn't have much Philippine currency on hand to buy food or pay bills off-base at the moment the gates were barricaded.
But during the strike, our unit commander discovered that one captain from our unit was using his personal all-terrain cycle to cross the fence at a broken point to ferry money and water to the families of junior personnel in the unit.
This was completely against the general's orders...but our commander closed his eyes to it. And I suspect he wasn't the only one. I further suspect the general was aware of it.
Back in the days of lynching in the American south, it wasn't unusual for a city father to say, after some racial incident in which a black man was named, something like, "I am a man who personally abhors violence. But it would certainly be understandable if someone in this fair city were pushed beyond the limits of moral tolerance, and something unspeakable were to happen to that Negro."
In 1961, integrated groups of young black and white men and women attempted to test the 1947 and 1960 Supreme Court rulings that banned segregation of interstate transportation. The governor of Alabama declared that they would never be allowed to pass through his state.
On May 14, 1961, their Greyhound bus arrived in Anniston, Alabama. There, an angry mob of about 200 white people surrounded the bus, causing the driver to continue past the bus station.
The mob followed the bus in automobiles until someone threw a bomb into the bus. The Freedom Riders escaped the bus as it burst into flames, only to be brutally beaten by members of the surrounding mob.
It was later learned that the police had told members of the mob that they would be given ten minutes to do whatever they wanted to the bus riders before police would arrive.
Leaders do possess a measure of shaping
practical legality, at least within the limits of their punitive jurisdiction.