I always wondered why the WTS celebrates the "memorial" even though it was only established with Jesus apostles, privately, and then only the anointed (all Christians then were anointed). When members of the WTS started being mostly non-anointed jws, for 3 years, the non-anointed were not invited, since they were not to partake and were not part of the group. Then they started inviting. Jws I knew personally then, some did not feel "called" to go to heaven and there was not an "earthly" hope offered, so they partook anyway. They said they were relieved when another choice, to live forever in a paradise earth" was explained, they could stop feeling they were eating improperly.***
jv chap. 16 p. 243 Meetings for Worship, Instruction, and Encouragement ***
Particularly beginning in the 1930’s, prospective members of the “great multitude,” or “great crowd” of other sheep, began to manifest themselves. (Rev. 7:9, 10, KJ; John 10:16) These were at that time referred to as Jonadabs. For the first time, in its issue of February 15, 1938, The Watchtower specifically invited them to be present at the Memorial, saying: “After six p.m. on April 15 let each company of the anointed assemble and celebrate the Memorial, their companions the Jonadabs also being present.” They did attend, not as partakers, but as observers.