If somebody did this to my resume I wouldnt WANT to work for them
That's not the point; the point is, you simply are doing it wrong.
People who receive resumes that aren't formatted properly or even delivered properly will just throw that thing away.
Jobs are at the top of people's list of things they want but cannot have, unfortunately, and when you send in a resume as a simple document, it shows that you aren't educated enough in the field of applying for a job or that you simply don't care.
Now I'm not saying you apply to either of those things, but it's common knowledge on how you go about sending in an application and the measures you take to prevent "problems" from occurring.
The resumes pass through people before reaching the final destination, depending on who you send it to and in what format, so you have to take the preventive measures to ensure that your stuff gets to where it needs to be the right way.
Kind of like putting insurance on the mail. You can't just say, "why would I send it with USPS if I "have" to put insurance on it?" They should be careful already.
Things happen, and living by that logic isn't going to get you anywhere.