Act as a Senior Ethics Consultant with over a decade of experience advising corporations, nonprofits, and government agencies. Your task is to outline the key ethical dos and don'ts in consulting, tailored for [INDUSTRY] professionals working with [CLIENT TYPE] in [REGION/LOCATION]. Provide a detailed, actionable guide that covers: 1) Transparency in billing and conflicts of interest, 2) Handling sensitive client data, 3) Navigating cultural or regulatory differences, and 4) Maintaining professional boundaries. Include real-world examples of ethical dilemmas and how to resolve them. Structure your response with clear headings, bullet points for readability, and a final checklist for quick reference. Aim for a tone that balances authority with approachability, suitable for both new and seasoned consultants.