Criminals are now realising that Bitcoin is not on their sides, atleast not like the likes of Fiat currency.
It's easier to get bursted doing your crime using Bitcoin as your means of payment, it's only criminals with zero knowledge that will choose Bitcoin as their money for funding their crime.
The power that Bitcoin gives us has never been seen before, if someone told you in 2005 that sooner we will start seeing the worth of our leaders you will say impossible.
Today we can know how much Trump Bitcoin wallet is worth, the more popular you are in this world the easier it is to figure your Bitcoin worth, unless you don't share your address at all, this is the only way your identity remain unknown.
Who dares go to the bank and ask for a governer's bank account balance? But now we can know because BTC is open source and traceable, isn't Fiat the perfect one for crime than Bitcoin? With power you can be dirty with Fiat, but not Bitcoin, you will eventually be bursted.
Making it the wrong place for crime to exists.
Until criminals, hackers and all stop getting away with stolen funds/money/bitcoin etc, I will not completely agree with bitcoin is a wrong choice for criminals to get funded through.
You are right in the aspect of the public knowing the wallet balances of top people in the industry and in the world, but then, this is only if they publicly link their self to a bitcoin address can be 100% sure that the wallet and the funds in it belongs to the said person..
And even at this, it is very possible for anyone to have as many wallet addresses as they can manage and also have funds in each of them, we can see those wallets and their balances live on chain but can not know who it belongs to until the person who owns it publicly declares ownership of the wallet address.
I am not saying it's good for criminals to choose bitcoin as a means of funding their evil acts, but I am not saying it's bad either.