It’s pretty lucky that Bruce Wayne was a Bajillionaire because it turns out being the Batman is a pretty expensive hobby (who knew?)
The motorcycle like escape vehicle comes in at a relatively cheap $1,500,00.
You won’t get far in this world without your caretaker, physician, butler and friend. He also happens to be a military strategist and expert on weapons. Those expertise don’t come cheap, $240,000 annually.
Installing the Batcave won’t be cheap either, neither will it be to keep the contractors quiet (Alfred is a cool guy but he can’t build that all himself). Plus you’ll need to rebuild Wayne Manor after it burns down under ninja attack.
Each night Batman takes a stroll through Gotham he spends close to $10,000 and that’s when he isn’t giving away $15,000 worth of thermal cameras to future Joffrey Baratheon.