Wall garden, vendor lock, license, and litigate for every LOC. Make customers pay for technical debt by dumping more exotic spaghetti code.
Larry Ellison's way of doing business is about him and what he receives at the bottom line. The customer is an after fact in the sales funnel. A resource that needs to be milked as a proper cash cow.
Larry Ellison is as a evil as the offspring of Joffrey and Cersei Lannister could be.