Material to be included should be relevant, noteworthy and well-sourced. If it isn't seriously discussed in high-level academic or scientific sources, it doesn't belong at all in a article of this nature. In the Menzies case, for example, none of these criteria are met. As for relevance, the topic is scholarly and scientific, while Menzies' work is entertainment with zero scholarly or scientific merit or value. As for noteworthiness, mainstream sources seriously discussing the topic rarely if ever seriously include mention of Menzies' work. As for well-sourced, Menzies has a reliability rating of diddly-squat as far as scholarly and scientific topics are concerned.