business with ethics....

As we now know what ethics actually is. So the question is " How is it applicable in business"?
Here the thing is that it is applicable everywhere in daily life, consider it personally or professionally, and it is very important for business, as it helps to positively boost up the company's reputation in the public's mind.

Lets take a look on a company's case namely (TOMS)......

(Source- Wordstream.com)

TOMS was founded by Blake Mycoskie in 2006 following a trip to Argentina. During his visit, Mycoskie saw firsthand how people living in impoverished areas of Argentina had to live without shoes, a challenge that many of us likely give little thought. Inspired by his trip, Mycoskie decided to establish his company with giving in mind.

Since 2006, TOMS’ footwear business has donated more than 60 million(!) pairs of shoes to children in need all over the world. As if that weren’t enough, TOMS’ eye-wear division has given more than 400,000 pairs of glasses to visually impaired people who lack access to ophthalmological care.
The company has further diversified its operations to include clean water initiatives through its coffee business, and its line of bags has helped support projects to expand access to birthing kits to expectant mothers in developing nations as well as training for birth attendants. To date, TOMS has helped more than 25,000 women safely deliver their babies.

How Does TOMS Use Ethical Marketing?

TOMS puts its social and environmental philanthropy on full display in virtually every aspect of its branding. This not only lets potential customers know the kind of company they’re dealing with right off the bat, but also reinforces TOMS’ brand values consistently across all channels.
Take a look at TOMS’ homepage. Right underneath the carousel, the company tells you that, for every product you purchase, TOMS will help someone in need:

Hope this was helpful
Thank-you.