In big companies, the idea that "there's no time to do it right" is often paired with the understanding that there's time to do it again, even if this rarely happens in practice.

Not having a runway or a burn rate to manage does a lot to increase the amount of "we'll just fix it later" thinking. Startups deal with technical debt as well, but there's a difference when it comes from a focus to get one thing absolutely right as opposed to a lack of interest in getting anything really right.