Is taking a salary from a non-profit organization that invests money paid to it by contracting companies to cover health insurance, pensions, vacations, and investment funds permissible or forbidden?

If the organization invests the money allocated for salaries in a Sharia-compliant manner, meaning its investments are free from usury (riba), gambling (maysir), and trading in prohibited items, then the salary is permissible (halal). However, if it invests the money through prohibited means, then the ruling on this salary requires further detail.