You miss the point entirely - the changes that people brought about in terms of their own individual consciousness, social consciousness and social conditions. Those changes were brought about by self-activity and could have been defended and extended by further struggle (by aggressive defence of organs of w/c control and associated production). They didn't require people to be signed up SPGB members to take place. You can see the same process at work in the anti-poll tax campaign.
You really do need to crawl out of the wreckage of 1917 - the Bolsheviks
Those changes led to the red fascism of Stalin. The point I/we are trying to make is that you need socialists to make Socialism, the means must equal the end, the power must fit the purpose.
The SPGB recognises that knowledge is power, so the more we working people know about the social situation we find ourselves in and its contradictions, become aware of the fact that as workers we have all the power of society embodied in us as a class, the more we understand about the Socialist alternative to capitalism,, the more potential/power we can apply to the process of revolution.
As we see it there are three absolutely essential prerequisites needed before we can acheive Socialism 1) production developed to the level that could end poverty, 2) communication at the level whereby production can be co-ordinated to meet the needs of society, and importantly to enable democracy to function, 3) consciousness, the understanding, awarenes of what Socialism is and the social will to share the duties and responsibilities to bring it into existance, maintain and develope it.
There wasn't much of 1 2 and 3 in 1917 Russia which promted the article in a 1918 Socialist Standard explaining why Socialism was not on the cards there. I wish it had suceeded because if so I would have lived and be living with Socialism, but it didn't, am I'm not. If we fail to learn from our history we are likely to repeat it. If we are to have a revolution ffs let's get it right, playing fast and loose with the future just aint on.
Let me remind you of that natural therefore unbreakable law of socialial responsibility I refered to in an earlier post, which the only acknowledgement of was a "ho ho ho" from PT.
The only responsible way to deal with social responsibility is to share it, any thing else is irresponsible.
Now if that stands up the last thing anyone can call the SPGB is irresponsible.