It depends....
Many engineers just see a degree as a meal ticket for a career up the management ladder. Meetings, planning, and paper shuffling being the main activities. That is certainly the route to power and riches, if not happiness.
On the other hand, R&D or maintenance requires literally hands on knowledge that can only be gained the hard way. Real engineering. There is something deeply satisfying about seeing something created with your own hands succeed both technically and commercially.
The man that can earn a reasonable living doing what he would do anyway if he had unlimited free time, can lead a happy productive and fairly stress free life.