When Russell started the WTS and began promoting his epistimology the teachings were not what they were today. Most noteable was that Christ was present in 1874. Thus he believed he and others were chosen by Christ to be of the Elect Remnant who would serve as part of the 144,000 the witnesses recognize today.
The problem occurs when the WTS, or Judge Rutherford, changed 1874 to 1914.
Now Christ did not perform any "inspection" until 1919.
He did not chose any FDS until 1919.
Well, Russell was dead in 1919.
Therefore prior to 1919 Russell was just as any other Christian group was. They were in the running to see if they would be judged worthy of being "good and faithful slaves" (according to WTS teaching) who would be appointed by the Master.
To hold that the Master was privately working with one man or group before the judging took place would be corrupt. Why wouldn't he have also been working with the other groups. It could not be due to doctrine since according to the WTS many of Russells doctrines are wrong.
If Russell is included because the Witnesses believe the Lord was in his work then what about those who Russell believed had the Lord in their work. He speaks about the Lords hand being behind the Millerite movement as this movement preceeded his own. Should these also be included in the WTS's line of Annointed. Be careful because 144,000 is filled quickly if you trace the history back too far. Perhaps that is why the WTS makes a break with all others at Russell. But why? He didn't. And if his linear portrayal is inaccurate why is he included in the WTS's current portrayal? The break with all others should logically be at 1919. If you take it back further you have to provide a reason to start at Russell, in spite of the fact that Russell didn't start with himself.