Google Begins to Send Out Email Ads to Gmail Accounts

I just received an email ad sent via Google to my gmail account.

The explainer attached to the email ad says:

This ad is based on emails from your mailbox. Ads Settings puts you in control of the ads you see.

Put me down as surprised. This is aggressive new advertising.

Funny, though, I went to the Ads Settings page and they list the below as my interests. They also explain the list: "We use interests from your activity on Google products to tailor ads to you." Some interests they have exact. In other cases, they are way off base, e.g. apparently Google thinks I am a Brazilian music loving cross-dresser.

Air Travel
Banking
Books & Literature
Books & Literature
Brazilian Music  (I have no idea how this is on the list. I listen to very little music and I'm not even sure what Brazilian music sounds like-RW)
Business News
Computer & Video Games
Cooking & Recipes (I haven't cooked anything for myself beyond a scrambed egg and bacon in probably 30 years.)
Economics
Finance
Fiscal Policy News
Fitness
Government
History
Home Improvement
Hybrid & Alternative Vehicles
Investing
Law and Government
Movies
News
Politics
Online Video
Rap & Hip-Hop (Oh yeah)
Real Estate
Recording Industry
Reggaeton (I didn't even know there was such a thing)
Search Engine Optimization & Marketing
Service Providers
Smart Phones
Social Networks
Sports
Superhero Films (LOL)
Travel
Women's Clothing ( I swear, I am not cross-dressing!)