It's a win, but not a wash, because they cannot serve highly targeted ads, which means they probably can't charge as much and people are less likely to click on.
Try to create a separate google account, use browser profiles, and this particular account only for searches in a specialized field (say CS, IT etc...). Than start looking at the ads you're getting. Google can't do that if the request comes from ddg.
It's just a quick way for the user to also try Google. I usually do search in DDG (default search) if I don't get good results I append !g to get results. Most often though Google doesn't give me much better results.
Try to create a separate google account, use browser profiles, and this particular account only for searches in a specialized field (say CS, IT etc...). Than start looking at the ads you're getting. Google can't do that if the request comes from ddg.