Java's a fine product that they're giving away. If that is how they want to monitize it, then I say good luck.

If you don't want the software, uncheck the box. If your time is too valuable to spend reading a line of text on an installer, then by all means, let the browser tool be an indication for others of what kind of person you are. Or hire someone who knows what they're doing to do things for you.

If I am using a computer that has lots of toolbars on the browser, then I know the person doesn't know what the hell they're doing. In that sense, the toolbars provide great information if you know how to use it.