The other people in Putin’s administration also have their own families and interests and wouldn’t want that put at risk by nuclear annihilation. Even if Putin himself tried to give the go-ahead, I doubt those in charge of the nukes would want to effectively commit suicide over Putin’s stupid invasion by firing them.
For two reasons in this case.
Russia knows that the wind can blow radioactive ash across their border.
Putin has grandchildren and dictators want legacies.
The other people in Putin’s administration also have their own families and interests and wouldn’t want that put at risk by nuclear annihilation. Even if Putin himself tried to give the go-ahead, I doubt those in charge of the nukes would want to effectively commit suicide over Putin’s stupid invasion by firing them.