While it is generally a good idea to be open to the idea of taking responsibility rather than fobbing it off on someone else... I can't say I agree in this case.
You had terrible, awful expectations. You expected your employees to be dedicated to the benefit of your clients rather than themselves? This is capitalism. People have jobs because those jobs provide THEM a benefit. Especially today, where you as an employer make ABSURD margins of profit off of everything your employees do (as worker productivity is astronomically high thanks to computers and such - just ask yourself how productive your company would be if you banned any technology produced after 1980. Couldn't survive, could you? Yet, companies did. And they paid their employees the same average wages you are paying now. You're just getting far more benefit.)
Pick up a book on capitalism. It's likely not what you think it is. It is not workers making as little as possible sacrificing everything for corporate praying that one day they'll win the lottery and become CEO. That's not capitalism. Capitalism is based on free exchange to mutual benefit of both parties. Your clients use your business because it benefits them. You tend to your clients because it benefits you. Win-win. Your employees work for you exclusively and only because it provides them substantial benefit, and you provide them that benefit because you make profit off of them. Win-win.
Expecting a worker to be dedicated to your company above their own interests is disgusting. You would not in a thousand years consider cutting your projected profits in order to improve their salaries, so there is no reason whatever for them to display any loyalty to you. Workers do not exist to work. They are human beings who exist to seek their own enjoyment, and if you as an employer fail to provide adequate pay/benefits/etc they will leave you to fail on your own. That is how it should be.
There is an escape. If you really do want to build an organization with invested, loyal coworkers, you can. The first step is to read a book on capitalism. Understand what a persons compensation is supposed to be based upon. It is not supposed to be based upon market average rates. It is supposed to be based upon the value of the work being done. If one employee earns a million dollars for the organization, that employee deserves most of it. If you want people to be invested, you have to actually make it in their best interests to do so. Right now, it is explicitly AGAINST their interests to be productive for you. It can't help them, and can only cost them. You'll cap them out at what they can make based on 'market rates'. And the chance of them rising to senior management is an invitation to self destruction with no payoff.
Employees are not going to be dedicated to the poisonous cesspit modern business has become. Just not going to happen. It's not your fault, and it's not theirs. And you cannot fix it while maintaining the kind of absurd growth figures and profit margins that modern businesses are taught to expect.