Surely her business is separate from her personal wealth which is hardly likely to be cash sat around. I wouldnt demand my manager pay me from her savings - not sure why it's different just because VB is richer.
Is your nsnager the owner though? Lots of small business owners use their own money to support themselves! Personal credit cards, remortgaging the house, selling stuff.Doesn’t matter if it’s for paying staff, expanding or weathering a blip.
If your personal wealth exceeds the cost of an entire business ie buildings, capital, staff, fixtures and fittings, planes ...then yes you shouldn’t expect the taxpayer to cover you.