Wealth can not be created WITHOUT labor
Arguing which component of a complex process is most important is a bit like a spark plug arguing with a rocker valve over which one is the most important to the engine. Failure of either can cause failure of the entire engine.
Creation of intellectual property, capital, labor, and markets are all integral to wealth creation. But, I will submit, that the most important, at least in terms of starting the process, is intellectual property.
Wealth cannot be created without intellectual property, but it can, and often is, created without labor (or, in instances where the creator of the IP and the labor are one in the same). Not everything of value requires mass production. Painting a masterpiece, composing a hit song, writing an or influential novel, if self-published, are all examples of wealth creation without the need for a labor force of unskilled or semi-skilled workers.
All the labor in the world won't create any new wealth without a plan or idea behind it. You can dig holes in the ground for your entire life and add no wealth to the economy.
It takes capital to bring new ideas to market, to pay for the labor, the raw materials, the plant equipment. But, unless that capitol is placed behind the right idea, it will be wasted. There have always been cases where investors, eager to put their dollars, doubloons, ducats, or deutschmarks behind a new idea, only for that idea to flop spectacularly.
Lastly, without a market, the component that competes with intellectual property for essentiality there is no wealth creation. A brilliant masterpiece, unsold, creates no wealth. A market can be millions of individuals, or one savvy art collector. But, a market must exist for a product before wealth can be created.