of course, there were consequence if they didn't go along. Further, Deutscher presents evidence that a lot of Mensheviks joined the government and the Party in the 1920s, so presumably a lot of the entourage were Menshies... of course toadies come from all walks of life.
BTW, who carried the boom-box in Stalin's entourage? -- Jim Devine "Segui il tuo corso, e lascia dir le genti." (Go your own way and let people talk.) -- Karl, paraphrasing Dante.