Due respect, I think you're missing the point. Tech start-ups are defined by strategies & efforts designed to achieve an extraordinary amount of growth/progress in an abbreviated period of time. A founder knowingly trades x/yrs. of massive work in the hope of achieving rewards that make that decision a wise choice.
I spent 6 yrs bootstrapping a sales & services startup to $12M rev / 7-fig net. I watched every $ and plowed My Own Profit back into growth.
How easy it must be to get huge VC checks & spend more on sales than company top-line! And all we've heard in the ecosystem is how brilliant Levie is.....