Ethical theories provide frameworks for determining right and wrong actions. Compare and contrast utilitarianism, deontology, and virtue ethics as approaches to moral decision-making. For each theory, explain its foundational principles, strengths, and weaknesses. Apply each framework to a contemporary moral dilemma (such as privacy in the digital age, AI ethics, or climate change policy), analyzing how different theories would approach the problem. Finally, discuss whether these ethical systems can be reconciled or if one must be chosen over the others.