“A traditional job” is not a very accurate representation what capitalism is.
Capitalism makes some people very rich: those who are willing and able to successfully evaluate, accept and deal with risk to achieve a reward. (Not all of those who are willing to evaluate, accept and deal with risk manage the end result of achieving wealth, however. Sometimes the risk still wins.)
However, whether “capitalists themselves” win out or not, during the time of their enterprises they have a demand – from the first startup to the day they close their doors for good and go out of business in a sad auction of bankruptcy assets (if that occurs) – there is a need for labor and those “traditional jobs” that you mention. Whoever holds those “traditional jobs” owes them to… capitalism, at least in the USA. (I can’t speak for the rest of the world, but the model seems to be pretty widespread.)
The entire middle class owes its existence to capitalism. Prior to the advent of capitalism, even if we disregard aristocracy and nobility, we had classes of rulers, warriors dependent on the rulers (or becoming them), clergy and merchants – merchants were generally not capitalists, but some of whom transitioned into that role – and the great mass of yeoman farmers and peasants. There wasn’t a lot of distinction between the yeomanry and the peasantry, either; they all lived pretty miserable lives on dirt floors and powered by their own manual labor.
People tend to become envious of those – relatively few – capitalists who strike it rich and achieve almost unspendably great wealth, while ignoring that those capitalists and others like them have provided the jobs that allow them to enjoy their more modest success.
The last time I looked, the figures for what it cost – someone! – to provide the infrastructure for a person to have “a job” (a generic job, whether office, manufacturing, distribution, transportation – just “a job”) was somewhere > $120,000 per capita. “Jobs” don’t grow on trees. And even when they do, such as in farming, or in this example, an orchard, someone had to take the long term risk to plant, nurture and maintain those trees to a point of maturity that someone could drive by and say “look at all that wealth growing on that tree”. It’s not automatic. That’s capitalism.