The fine for misrepresenting yourself is just a normal fine not a court job. Although, there is a lot to weigh up too mate apart from just the fine for misrepresenting yourself. Say you have a crash and the insurance company requests your medical history, if there's a declarable illness that isn't declared then your insurance is void. Not only will the claim be denied but you will get at least 6 points and a fine, with the possibility of 6 months imprisonment.
The crash I caused that lost me my licence, Allianz requested my medical history when assessing the claim. I was also involved in a low speed shunt, another driver slid on some black ice and went into the back of me, again the insurance company requested my medical history. So even if you're a careful driver, someone could crash into you and bring the whole game down round you.