Comment by toyg

A lot of people have a say on the list of people to be honoured, but the Prime Minister is the most influential of the lot. Technically speaking the monarch could overrule any objection (afaik the process is not defined by any specific law or regulation, just built on convention), in practice it rarely ever happened with Elizabeth II. It will be interesting to see how this, like many other conventions established under her rule, will morph once we go back to having a male King who will be more popular than the political establishment, something that hasn't happened for a very long time.