Your job as part of social contract of living in a market-based economy is to allocate capital in the most productive way possible to maximize efficiency of the whole. What this means, is that if you believe no ventures are valuable, you allocate your capital in cash. If you believe ventures will outperform cash, you invest in ventures. So you're "forced" in the same way you're "forced" not to be homeless, have a job, and not hit people. It's a way of life.