It's a very valuable service you're offering. I've advised a lot (a lot) of CEOs, business owners and senior executives and they often neglect their life balance in the name of the growth of the company. Obviously this comes at their personal expense and the expense of their families and friends, as you allude to. Life Coaching for executives is a burgeoning field in the U.S. as execs seek to strike a meaningful work-life (note the order of the nouns in that idiom, btw) balance. If you're going to get into life coaching for execs I would keep in mind a very one step at a time philosophy. The key to "peace" with CEOs is "pace". "Inner peace, clarity..." is the Dharma (the purpose of life: empowering others) and helping a CEO find that is a great gift that you could offer him or her but were this enlightenment to come all at once it could be a great diversion from their balance sheet; which is what pays their employees, puts their kids through college, etc. Your hard work will be getting them to play for "and" (have a company and a life that works) as opposed to "or" (have a company or a life that works) and to do it at a pace which doesn't disrupt the company's financial bottom line while it creates another one: happiness.

PS- I'm not t life coach but rather a business coach - but I've worked with many. You're onto something here.

Good luck!

John