In my experience those who implement before process leave out important cross team requirements and/or blow their political capital right away. Or they spend their time doing things like unsolicited refactors or migrations or rearchitecting. They're forgiven for a project or two but eventually people get tired of it because it's not sustatinable.
Those are not 10x engineers.
Real 10x engineers know how to deal with politics and process on top of the actual engineering. Those are rare but absolutely amazing to work with.