Consumer is other scientists, engineers.
Capital is research grants from government, university, industry.
The scientist must manage these personnel. Extremely limited funding pool from federal, state, university and industrial agencies. The product must be of rigorously high quality and quantity to get capital or revenue. Work hours are as long as it takes to generate the quality and quantity of product to compete in the marketplace of ideas. A scientist's work hours are flexible, but extend to any time of day and night, year 'round.