Maat,
I suggest that the people with the greatest influence were Rutherford and Fred Franz. The former ditched much of Russell's ideas (1874, pyramidology, etc) while the ideas that Rutherford introduced (1914, "Jehovah's Witnesses", etc.) shaped the organisation. Franz built on Rutherford's framework. Rutherford was "crash-through". Knorr was a businessman.
The WTS therefore looks at Russell through the lens of his successors. The reality is that Russell was a product of his time - the 19th century US prophetic speculators.
It is worth noting that there are innumerable splinter groups which owe their origin to Russell. He would not recognise the current Watchtower Society as having succeeded him.
Doug