With a bank account, the bank and other third-party entities have the power to control when and how you send or receive funds. Bitcoin (BTC), on the other hand, gives you the freedom to send and receive funds whenever and wherever you want. That’s just one. Overly, Bitcoin’s most outstanding quality is its censorship resistance; there’s no interference from the government.
In the case of Julian Assange, the founder of WikiLeaks, an organization helping unearth ills in government and other sectors around the world, the United States government influenced fiat payment processors like Visa and Mastercard not to process donations to WikiLeaks or its founder.