Should you place relevant images in every article?

It’s a well known fact that human eyes will catch images first than text in a page. By seeing an appropriate image, reader can get an overview of what the author intended to say. So it’s highly recommended that using an appropriate image adds worth value to your article.
For example let’s imagine you are writing an article related to Adsense, here its worth to place a Google Adsense logo in your article. Let me share some Do’s and Don’ts while you play with images or logos in your articles.
Do’s:
Do use a company logo if you are talking about it
Do credit the designer if you use images on personal websites or blogs
Do use images on public domains like Gov
Don’ts:
Don’t edit the images without written permission from author
Don’t use company logos in unnecessary situations
Don’t remove or edit water marks on images
Please feel free to add more if you know. By the way are you placing images in your articles?