None of the funds enumerated in Section 89756, nor any of the funds of an auxiliary organization, shall ever be used by any university or college for membership or for any participation involving a financial payment or contribution, on behalf of the institution, or any individual employed by or associated therewith, in any private organization whose membership practices are discriminatory on the basis of the characteristics listed in Section 66270. This section does not apply to any public funds that have been paid to an individual employee or officer as salary, or to any funds that are used directly or indirectly for the benefit of student organizations.