Everyone thinks CMC will be in good hand but let's not forget that CZ is a human too, he will definitely use CMC for personal favours and gains, I do not trust any body when it comes to money and I believe CZ won't drop that 400m $ without a plan
He may use it for personal purposes, but I believe he will not overdo it too much. I trust him and certainly a lot of people will trust him too, the current Coinmarketcap is too bad and we need new people to make this market cleaner.