Bitcoin offers an alternative to traditional (fiat based) finance.
There's no interest that's inherent in this system. There's no mechanism for easy lending. There's no money supply manipulation. There's no lending off of a balance sheet (only) asset, i.e., imaginary money.
Does Bitcoin offer a positive evolution to finance? If so, how?
You can look at it in many perspectives.
The government, the bankers, and the average Joe.
The government, no need to say. They are the ones that controls the entire system and "makes sure it runs smoothly". They are the ones that manipulate every variable like the interest rate and the monetary supply. They are the ones that are on top of the hierachy. They hate bitcoin because it takes that control away from them - sure, they can get a shit ton of mining devices and start mining, but that costs a shit ton of money, and if they print too much money, the whole thing will spiral out of control and their scheme will be worthless.
The bankers, next level down, they profit from fractional reserve lending practices. This is not possible with bitcoin, which means that they will have to either switch business models or go out of the business. The money transmitters as well, they will go out of business because bitcoin can be sent anywhere across the globe without having to add extra fees.
The average Joe should really benefit if we all started using bitcoin. It is a store of value, most importantly. Which means that they don't need to worry about their money losing value in the long term. But we have to accept bitcoin as bitcoin, but not as the value of fiat that is behind that bitcoin. Once we achieve that, then that's true adoption.