That depends on whether you're in Asia or the USA. On the USA the 787s are mostly displacing routes that would've been operated with connecting partners (eg United to a bunch of Chinese cities), vs in Asia where they're used on high density high frequency regional routes.
The 767 was a great plane for those routes especially on the shorter end (like TYO-SEL or TPE-HKG). The 787 is significantly heavier so performs poorly in terms of fuel efficiently until it's flown a couple thousand miles to make it up in better cruising performance.
We already have very-long-range business jets like the Global and G650ER for when P2P is essential and cost is secondary.