There is, of course, an important distinction to be aware of. Social revolutionaries believe the current system, current culture is too sick (too corrupt/rotten, fundamentally flawed, institutionally racist, etc.) to be fixed and must be destroyed so that a new system can replace it. (This is classical Marxist-Leninist thinking.) Social reformers seek to remedy the injustices within the current social system without completely destroying it. Whereas revolutionaries desire to tear down the existing social system because it cannot be repaired or reformed, reformers seek to remedy the societal flaws from within the current system.
a cautionary note for revolutionaries (“progressives” and social justice warriors)
But, we must bear in mind that it is always easier to destroy than to build up in this world. Destruction can be accomplished quickly and violently. Construction is not so easy to accomplish as it requires much more time and effort. This is true of constructing a building, or building up a society. Revolution can be and is a more costly approach to fixing society’s ills.