ESG vs Ethical Investing: What's the Difference?

Key Differences at a Glance

How ESG Investing Works

ESG investing evaluates companies across three pillars: Environmental (carbon emissions, resource use, pollution, climate strategy), Social (labour practices, human rights, community impact, data privacy), and Governance (board diversity, executive pay, anti-corruption, shareholder rights).

Fund managers use ESG scores from rating agencies like MSCI and Sustainalytics to identify companies that manage these risks effectively. The key distinction is that ESG investing treats these factors as financially material — companies that handle ESG risks well are considered better long-term investments, regardless of their sector. An oil company with a credible transition plan might score highly on ESG metrics even though it would be excluded by an ethical screening approach.

How Ethical Investing Works

Ethical investing starts from a moral standpoint. Investors identify activities they consider harmful and instruct their fund manager to exclude companies involved in those activities. Common exclusions include fossil fuel extraction, tobacco manufacturing, weapons production, gambling, animal testing, and companies with poor human rights records.

This approach is more straightforward than ESG scoring — a company either passes the ethical screen or it doesn't. The trade-off is that excluding entire sectors reduces the investable universe and may modestly reduce diversification, though in practice the impact on long-term risk-adjusted returns has been minimal.

The Combined Approach

In practice, most modern sustainable investment strategies combine elements of both approaches. A portfolio might apply ethical exclusions to remove the most objectionable sectors (such as controversial weapons and tobacco) while using ESG integration to tilt the remaining investments towards companies with stronger sustainability practices.

This combined approach offers the moral clarity of ethical exclusions alongside the risk-management benefits of ESG analysis. The FCA's SDR labelling framework recognises this complexity, offering different labels for different approaches: 'Focus' (sustainable assets), 'Improvers' (transitioning companies), 'Impact' (measurable outcomes), and 'Mixed Goals' (combined strategies).

Which Approach Is Right for You?

The right approach depends on your priorities:

• If you have firm moral convictions about specific industries, ethical exclusion ensures your money never supports those activities.
• If you want broader diversification while still favouring responsible companies, ESG integration maintains wider sector exposure.
• If you want both, a combined approach applies exclusions where your values are strongest and ESG integration across the rest.

An ethical investment adviser can help you determine which combination of approaches best matches your values and financial objectives. For a comprehensive overview, see our sustainable wealth management service.