I spent enough time dealing with those who come from the academic slums of England or the colonials who think they are doing themselves some favor by attaching themselves to these mindless crooks.
There has to be a modification in how inclination is expressed for each planet. All planets have a North and South latitudinal position above and below the planet's orbital plane and although the entire surface of a planet turns to the Sun in response to its orbital motion, the polar points are of particular interest as they trace a circle parallel with the orbital plane.
http://calgary.rasc.ca/images/planet_inclinations.gif
In this system Uranus has an 8° inclination, Jupiter has an 87° inclination while the Earth has a 66 1/2° inclination.It makes it easier to determine the spectrum into which the Earth's climate fits so that an increase is towards polar and a decrease in inclination is towards equatorial. It is also highly productive.