I'm not sure if you are intentionally be obtuse or not seeing the forest for the trees.
Bitcoin allows the seller to directly receive payment from the purchaser. Whenever a seller depends on a 3rd party intermediary to pass money through then that seller becomes dependant on the whims of that third party.
In some cases that 3rd party has enough clout to enforce change that is beneficial to society. But that power can be abused easily.
Lets take an imaginary scenario:
Payment processor "Money Buddy" discovers that website "slave-labour-goods.com" is forcing children to work 23hrs a day for a nickle. "Money Buddy" tells them to stop being assholes or they will stop processing their payments.
Nobody can really argue that this forced-change is a bad thing. Now lets change the scenario to something more ambigious.
"Money Buddy" discovers that "imported-cheap-stuff.com" forces that any female employees wear a hijab. The "Money Buddy" CEO is a feminist and thinks that this is an oppressive rule. But "imported-cheap-stuff.com" is located in a country that enforces that law, and the president of the company proudly wears her Hijab during the press conference proclaiming that "Money-Buddy" is actively trying to oppress her religion and national law.
Bitcoin bypasses that middleman. If you want to support child-labour and buy your sneakers for $2 less then the competitor offers then you can. If you want to make sure your money goes directly to the people you want you can. Why allow these fat-cats to continue getting their cut when they offer no added value for their services?
Bitcoin can be an incredibly powerful tool for change in society.