The Hall family's scions were fairly talented despite being spoiled. The middle son wasn't of question since he was kicked out before he could kick something in, but the rest weren't free of responsibility or talent themselves.
Just like how Vienna Golden Hall was prodigious with the sword, so was Billy Ard Hall prodigious with business and management. He was already helping decrease his father's workload, and could do much more.
Like running businesses. Best of them.
In a school as well. He could also pour in his own agenda in them, for example, luring out his brother who had gotten interested in cats. Or luring out his brother who was always a sweet-tooth, or luring out his brother in general.
And so, to that end, he borrowed his power as the secretary of the Sachertorte faction and raked in ton of profit, along with pulling out his suddenly rebellious little brother.
Well the rebellious phase was because he was helping kill demons, who knew?
