Well he literally became a millionaire through his book deal, I'd say he did pretty well on it.. and again, interestingly stopped saying 'millionaires' in his speeches about who should be paying their fair share..
You can check that out for yourself. Any 2016 speech he's talking about the millionaires on every occasion, then in 2020 he's stopped and now just talking about people whose got more than him. Thats not a coincidence. You don't just accidentally leave out your exact tax bracket when it comes to who should be footing the bills..
He's got 3 houses, his cars, still a millionaire, same as before he campaigned so clearly nothings leaving the bank. Afterall, if he was (like he's ideologically supposed to?) he'd be running on it right?
'Im bernie sanders and I gave all I have for the democratic socialist revolution and I'm distributing my own wealth to the people who'll help me become president'
-said by bernie-- never
etc etc
Well bloomberg is a whole other topic
the point here is that you're arguing that big bucks bernie refusing to contribute to his own cause is ok because bloomberg spent more than bernie could give... well bloomberg wasn't around spending said money 4 weeks ago.. and bernie still wasn't paying up, right?