Asset managers have a strong incentive to recommend the financial products on which they are best paid.
Therefore inexpensive ETFs or stocks and bonds of companies known for their ecological, social or entrepreneurial responsibility rather rarely appear in the investment plans that banks manage for their clients.
Another potential source of conflicts of interest:
commissions and retrocessions, for example when an asset manager recommends products with the highest commission in the first instance.
Source : VZ news 112, september 2018, vzch.com