Corinthians and Romans

1 Corinthians seems like the anti-natural theology text par excellence, whereas Romans 1-2 has been read as a natural theology and natural law passage since very early in the church’s history. Was Paul dishonest? Contradicting himself? Did he change his mind? I don’t think it’s plausible to suggest he wasn’t bright and he probably had the Torah memorised so its unlikely he forgot what he wrote in one letter when he wrote the other. How then, if at all, can they be reconciled?