Tautological job titles

I used to work at a company where a work colleague* had their job title 'Writer' become 'Content Writer'. Is there any need for this extra word? Do you get the extra word in lieu of a pay rise? Can a writer write anything else but content? Similarly, there are jobs advertised for 'Visual Designer'. Again, the definition of designer is visual (unless you're a Systems Designer or something; either way Visual Designer is too vague – Fashion Designer? Graphic Designer?). Another company calls its consultants 'master experts'. But my favourite tautological job title, very rarely seen unfortunately, is Deadly Assassin.

*Deliberate tautological usage; a colleague is someone you work with.