Is your family more of a democracy when it comes to what you disagree on, or is there one person who tends to make most of the rules and enforce them? You can answer referencing the family you lived with as a child if this question is not applicable in your current household.
Growing up my granddad had final say. He didn't like much spice, so food was usually cooked pretty blandly. He had a 1975 Buick Electra 225 (a "Deuce and a Quarter" they called it) that he kept meticulously care of and in peak condition. There were tons of rules about his car that were always followed (until my granddad died and my father bullied his mother for control and crashed it buzzed driving).
Born in 1917, I do not believe he finished high school, my granddad (actually I'm pretty sure he dropped out before seventh grade to work and help support his family), but he came from an era where husbands/fathers believed that no matter what, they must provide for their families and he did so very well with so much opposition from the times he lived in. I guess successfully living that way, he held (but didn't often utilize) the "veto power" and I fully believe those around him felt he deserved it. He was definitely a strong patriarch.
After my granddad's death, my father usurped veto control, but he did it as a bully and a jerk. He used it that way too. I'm pretty sure one would be hard pressed to find anyone that respected him in even a fraction of the way my granddad was respected.