I don't think this is much of a big issue, less than say why do all of the glockons have lulu fund machines in their offices if they scoff at him, and why couldn't abe just grab the riches glukk to get into vykers lab, since he ended up sneaking into the richest gluk's own quarters to give lulu the final bit of money in the first place.
It's just a game, there reason is for gameplay values, and for fun, the reason games were invented in the first place.
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