Nodal precession

This precession is due to the non-spherical nature of a rotating body, which creates a non-uniform gravitational field.

This bulge creates a gravitational effect that causes orbits to precess around the rotational axis of the primary body.

This nodal precession enables heliosynchronous orbits to maintain a nearly constant angle relative to the Sun.

A non-rotating body of planetary scale or larger would be pulled by gravity into a spherical shape.

This torque does not reduce the inclination; rather, it causes a torque-induced gyroscopic precession, which causes the orbital nodes to drift with time.

[1] A good approximation of the precession rate is where The nodal progression of low Earth orbits is typically a few degrees per day to the west (negative).

In this case it is possible to make the precession approximately match the apparent motion of the sun, resulting in a heliosynchronous orbit.