If the woman is used for height, then by rights, the length and width could be compared against anything. This way any guy without an actual measuring device could use his premeasured penis length/girth and average womans height to work out the real world spatial dimensions. Of just about anything.

1 woman high, 2.2 penis long & 13 meatsticks thick.

What im getting at is, anything relatable can be used as a guide to put things into perspective.