In reality the policies we talk about are the proactive nurturing of a healthy economy. Systems thinking instead of systemic capture. Diversification as a fundamental risk management strategy. Keeping them small to keep them honest. Fostering competition that will unleash creativity. Etc.
I have a strong (but hard to prove) feeling that had the past decades in tech not been so dominated by a tiny number of conglomerates, the contribution of tech to society would have been materially much more impactful.