In venture capital, an investor's reputation is constantly on the line. A successful exit in one fund doesn't satisfy the LPs of a subsequent fund. This creates relentless pressure to consistently perform, as you're only as good as your last hit and can never rest on past achievements.
An investor's power over a portfolio company is fundamentally limited and primarily negative. While a VC can block a founder's actions, such as through board approval or withholding capital, they cannot force a founder to take a specific path, even if it seems obviously correct. The role is to advise and assist, not to command or execute.
Over-diligencing for well-rounded perfection is a mistake. The best companies rarely excel in every area initially. Instead, investors should identify the one "spike"—the single dimension where the company is 5-10x better than anyone else—as this is the true indicator of outlier potential, rather than looking for a company that is A+ across the board.