Founders need funding to expand their businesses. Investors have the funds and they are willing to invest in businesses or startups that are scalable, innovative, and have a very high social need.

As such, founders that accept investor money must have it at the back of their minds that they will lose some level of control. They cannot independently make decisions that will impact the future of the company without the full knowledge of the investors.

Oftentimes, the investor will appoint someone they trust to join the board of the firm or play a major in the day-to-day running of the company...

Continue here: https://www.techawkng.com/2020/09/29/how-to-avoid-clashes-between-founders-and-investors/

One of the main reasons for these clashes usually has to do with insincerity on the part of some founders...they usually find it difficult to uphold come conditionalities which were given before the investment of fund was made!