When you hear the names Sidney and Beatrice Webb and George Bernard Shaw you might think of some kind of evolutionary socialism.
However, the British empire had a hand in their development and maintenance. This does not mean their founders were conscious British agents. Nor does it mean the Fabians did not do good. What is being said here is that the ruling classes do not stand outside of social movements. They try to infiltrate them.
Read Matthew Ehret in The Duran