Egos destroyed NWA, not Jerry Heller.
1.Cube left the group to go to school and didn't tour so he didn't get any tour money. Why his check was light. Eazy had a bank account that every member of NWA had access to if they wanted money. Eazy never counted or watched money like that. Cube was pocket watching everyone else's money from putting in 100% while he put in 50% of the work.
2. Dre didn't leave because of money, him and Eazy were next door neighbors both with mansions. Michel'le was ice cubes girl. Then he went to school and she started fukking Dre. Cube came back and found out he was sharing that girl with his big homie and got upset. Dre eventually found out that he was sharing her with Eazy and he got upset and set Eazy up to get out of his contract. Then eventually found out he was sharing her with suge when he got to death row.
3. Bryan Turner the head of priority and the guys office who ice cube smashed up was in Ice Cubes ear because he was the youngest, disgruntled, and easy to manipulate. Reason ice cube smashed up his office in the first place. Dude promised him the world if he left NWA.
Those 3 people broke up NWA. Jerry Heller had nothing to do with it but the executive producers of straight out of Compton were Ice Cube and Dr. Dre so of course they bent the story in their favor. That's why they fired the first script writer and brought in their own guy.