1): kotor: on manann you can choose to poison the ocean and kill a 100? year old shark, the result of doing so rids the universe of Kolto, and leads to 500M deaths in the battle between Vitate / Revan and Malak vs Republic. If you decide to embrace the evil nature of your actions you can torment the entirety of their race in court, get a ton of loot, and still be allowed to return (lawfully evil). I have never seen a game where you can do this.
2) kotor: on Kashyyk if you push out Czerka over 1K credits vibroblade out of greed, the result is a flat out war that lasts 80 years and leads to thousands of dead, 50 years of slavery, wookies mass genociding each other, and hundreds of people loosing their homes and families- all knowingly as your instructed on what will happen as a consequence of your actions.
Personaly i dont like such consequences ...
Things like this happens offscreen and are effects of much more things than just your actions.
You could aswell claim that playing as a good guy in KotOR eventually leads to raise of Palpatines Empire, severals years of war and litteraly billions of lives lost.

Personaly i like much more smaller, but direct consequences ...
Like in Witcher III. where you can decide to do something-i-dont-remember first ... wich leads to childern being eaten by Witches ... wich leads to Barons wife loose her mind ... wich leads to her Daughter being pissed at you during your common mission etc.
Things you see, bcs they are happening to you, or in front of you at least.
nor are you the single most powerful person in the universe as Revan was.
Except he was not ...
Not even that powerfull as Drew Karpyshyn was trying to persuate us, when he wrote himself in the corner and needed to give Revan powerup from nowhere in order to get out of his own mess. -_-