Hilaire Belloc 1870-1953 probably had the right general idea:

Lord Finchley tried to mend the Electric Light
Himself. It struck him dead: And serve him right!
It is the business of the wealthy man
To give employment to the artisan.

Being an excellent plumber/electrician is all very well, but unless there is someone you can sell your skills to you will soon run out of work opportunities on your own property.