The problem is satellites take a long time to manufacture, upwards of 10 years, and everything is very mass optimized. The industry is too slowly adapting to cheaper more frequent launches.
They have their own launch market keeping them busy. Also, even without Starlink, there has been growth in the launch market, it just happens that with modern electronics, most satellites don't need to be very large, and there are a few sets of orbits most of them want to go to. So you can just have a regularly scheduled trip to an orbit and absorb a lot of the demand in one launch.