Original sentence: In many cases these organisations are forbidden from conducting their ballots internally in an attempt to ensure that the ballots are conducted impartially
Edited sentence: Companies may allow voting rights to shareholders and so in practice to pension fund managers, who lack a long-term stake in the business.In many cases these organisations are forbidden from conducting their ballots internally to ensure that the ballots are conducted impartially, but are still open to criticism.Unions may allow cliques to control who stands for national election or controls a local budget, by allowing only face-to-face votes at branches