Yes - by those with established businesses. I can't think of a startup that succeeded with an initial incremental, at lease since Amdahl. It's also hard to do an increment: the Intel teams are not dumb, and many could and have built far better processors than Intel has - but not while keeping compatibility and Intel's ROI and marketing and pricing structure. TransMeta tried - RIP.
There's also personal strategy involved. If we had done a better X86 we would have needed huge dollops of money to crack the front door of the market - c.f. TransMeta - and lost ownership of the company. By going for the disruptive approach we still own all of it - and funding rounds now are at a valuation that will keep us making our own mistakes, not someone else's. That matters to me, enough to go without paycheck for a decade. YMMV.
There's also personal strategy involved. If we had done a better X86 we would have needed huge dollops of money to crack the front door of the market - c.f. TransMeta - and lost ownership of the company. By going for the disruptive approach we still own all of it - and funding rounds now are at a valuation that will keep us making our own mistakes, not someone else's. That matters to me, enough to go without paycheck for a decade. YMMV.