For the purposes of fraud prevention, payment processors can be viewed as an escrow service (along with other things, of course). This can still be programmed on top of bitcoin, someone like amazon/eBay can build this escrow system and charge a fee.
There are still the monetary policy trust issues that Bitcoin resolves (not having to trust a central bank) if you are particularly libertarian or whatever, but I don't think that's really a driving cause for any sort of adoption in any other countries other than Venezuela and maybe Cyprus 5 years ago?
A working example of this is the lightning protocol which is implemented on top of Bitcoin script. It uses time-based escrow written in Bitcoin script to eliminate the need for trust or third party intermediaries.
This is an important benefit that isn't very well known.