The problem is, in a great portion of real world projects "eventually" never comes and there's just no time for any major refactoring or replacing technologies since you are too busy implementing the feature that was needed two weeks ago.
Pre-Norman English looks like this - "Wé Gárdena in géardagum þéodcyninga þrym gefrúnon hú ðá æþelingas ellen fremedon". I reckon you'd have to sacrifice quite a lot of intelligibility in your quest for purity.
1 HR person per 5.5 employees? This is insanely high. A company that size need 2-3, tops.