Jacinda Ardern has criticized New Zealand's banks for making billions of dollars in profits as the country's cost-of-living issue worsens, claiming that doing so puts their "social license" to function at danger. In the year ending in June, the 27 financial institutions in New Zealand announced EBT (Earning before tax) of NZ$9.7 billion, which is on pace to exceed $10 billion in next quarter.

Which leadership theory can be applied to this?