Once capital grows large enough it starts being able to bend the fabric of economic space around it. It begins to change rules and accumulate more capital merely because it's so big. This is a natural feature of capitalism. Properly attended to, fire makes steam and runs an engine. Left unchecked, it's a forest fire. Capitalism is like that. It needs moderating influences to keep it controlled and useful and not consuming everything it touches.
It can also lose giant amounts of money. IBM is a shadow of its former self. Microsoft isn't, but could well have been had it continued the 2010s the way it performed in the 2000s. Google search is vulnerable to AI. Businesses can vent vast amounts of capital into space very easily when money gets too easy to obtain.
