Judging by the sheer number of devices running outdated Android versions and the consumer unfriendly tactics such as locked bootloaders, carrier-locked modems, bloatware, and sometimes even tracking software (fair to call this spyware?) employed by carriers and manufacturers I'd say that incentive to produce good products rarely eclipses these supposedly "invented" negative incentives.

That said, Treble looks like a good step in the right direction. Maybe things will improve in the future.