Counterstrike VS AIDS - In-Game Advertising

In-Game Advertising to promote young people and online gamers to use condoms. This campaign ran in German. During the campaign, every online player would see the promotional message as he entered the game

I only wonder. Why did they bother promoting AIDS and condom campaign to online gamer? They are gamers. They won't have sex anyway.

Credit:
Advertising Agency: Ogilvy Frankfurt, Germany
Creative Director / Copywriter / Art Director: Christian Seifert