Design for client or for users?

I have been designing last 3 years, worked on so many projects, worked with international clients as well.

While presenting the design, client always say make it pop, make it vibrant and there are so many fucking things in those meetings.

As a designer we keep always end user in our mind while designing. So how to fuck client knows to make that component pop or vibrant? Making these type of changes will change the complete layout, usability is you never find there anymore.

How you guys handle this scenario?