My dad's family did a bit of this and got quite a few years back (end of 1700s IIRC) but my dad couldn't tell me what jobs the guys had, probably stupid peasant workers or so, which means my backroom posts are just fine for someone of my heritage.
Don't know about my mom's family, asked a couple of times but the answers were usually vague, my grandma couldn't even tell whether her husband and her dad were soldiers in the two worldwars or not. All I know is they fled from eastern prussia when the Russians came while my dad's family is dutch now but may have been german before, or not.

I'm still waiting for someone to find out that I should have some nice castle but becoming rich and buying one should be faster.