not sure how this post went from a jobless guy to a degree-diploma debate. Who cares. if the diploma can make the manager's life easier , of course he will promote diploma holder. If got degree holder do more screw ups than diploma holder, why should the deg holder be promoted.

but dip holder can only go to certain rank. then boss no choice to stop promoting the dip holder unless he/she go for deg . boss then look for the next best worker who can make his life easier. If the next best worker has deg cert, can go higher rank. If again is dip holder , stuck to a certain rank.