Is civil/ structural engineering underpaid?

I'm passionate about structural engineering, especially designing houses, and I want to get my PE and GC license to start my own firm. However, I'm worried about the salary since many sources say civil/structural engineers are paid less than other engineers.

Is this true? If so, what can I do to increase my earning potential in this field? Are there specific skills, certifications, or career paths that lead to higher pay?

Thanks for your advice!