PPC is all about bidding on specific keywords and optimize your campaign with each aspect to perform well. Quality score of the ads is main factor which get your ads in higher placement with good relevancy clicks. High quality ratio means getting your ads appear at low bidding. In different factors, landing page design is also thing which can make impact on your quality score.

Factors like speed of the page, call to action content on the landing page, design of the page, relevancy of the content you have displayed, good user interface is require. So before starting your ad campaign test your landing page with different points and make necessary changes.

Attractive design of landing page can help you to get more traffic and positive response by people.

I totally agree with you  each page can and should rank individually, that is what the aim /task should be of every SEO expert.

A clean and attractive web design is very important for a landing page either for PPC or organic results.Great website design allows you to connect with your customers without you realizing this connection.