Responsible Investor has an excellent article on how the Sustainable Finance field is experiencing greenwashing in its hiring practices.
Many organizations are adding jobs so quickly they don't have the time to train or hire the right talent. Some firms are internally promoting individuals and giving them titles they do not have a background in because there is such a major demand for these services. A basic understanding of sustainability does not make them an "ESG and Sustainability Expert." Likewise, a career in finance does not mean you will have the understanding to address environmental and social issues.
Greenwashing means that individuals with passion, empathy, different backgrounds, and understanding can stand out and have a deeper impact.
Check out this resource from Ibrahim Rashid which specifically highlights how students with non-finance education can counter the greenwashing and break into the field - The Policy Wonk’s Guide to Impact Investing