Sales drive revenue. Revenue drives profit. Profit is a major driver of share price and shareholder value. Share price and shareholder value determine whether a public company thrives, survives, or fails.
Betamax was better quality than VHS. VHS sold better. Betamax failed and was abandoned.
On a more DSLR related note, Olympus came out with 4/3 format. It was going to be a worldwide standard. Many things about thier cameras were ahead of what the Canon and Nikon crop bodies offered at the time. They had beter user interface, beter weatherproofing, arguably better sensor performance, and faster autofocusing..... and where is it now? ( 4/3... not micro 4/3 ). Sales sucked, product not stocked by retail stores, death spiral, gone.