According to Osho, yes—subject every inherited idea of good/evil, sin/virtue to the fire of doubt. Doubt is a purifying touchstone: whatever is true and genuinely good becomes brighter; whatever is false, conventional, or hypocritical burns away. Social morality often masks bargaining and bribery with God; only what survives honest inquiry deserves your trust and practice.
Question what people call good or bad; if it’s truly good, your questions won’t break it—only fake stuff will fall apart.