That gets outside of political theory and into practicalities, which isn't somewhere I'm personally prepared to go in any serious way.
But, here's one thought: Texas state legislators are paid a salary of $7,200 per year. Not exactly a lot to live on. So they've clearly got to either be independently wealthy, or figure out some other source of income. "A well nourished Legislature, being necessary to the security of a free State, the right of the People to seek and receive graft shall not be infringed." Or something like that.
But, here's one thought: Texas state legislators are paid a salary of $7,200 per year. Not exactly a lot to live on. So they've clearly got to either be independently wealthy, or figure out some other source of income. "A well nourished Legislature, being necessary to the security of a free State, the right of the People to seek and receive graft shall not be infringed." Or something like that.