Who do you think owns and runs those companies? The government?
And just for the record, I have been to Europe and London specifically, amongst other places. Your National Health Care System is a socialist system. Period. It is run by the government with central planners deciding who gets what treatment. That is the very definition of socialism. Look it up in the dictionary.
Shareholders own those companies and before the say rich people own those shares check the link below,
http://www.bp.com/extendedsectiongenericarticle.do?categoryId=9010453&contentId=7019612
In the UK individuals owning companies is around 8% of the value of those companies. In the USA it is higher at nearer 36%.
In both countries it is not rich people who own and run the majority of companies.
Anyone can buy shares you don't have to be rich but usually it is the pension funds, bondholders, unit trusts who own and run companies.
I asssume you refer to the National Health System. Firstly it is not a national system. It is publically funded but health in the UK can be free through the health service or from private providers at the patient's choice. It is ran by various organisations and funding is decided County by County and it is the local GP's who for the most part decide who gets what treatment and when. Specialist treatment is decided by specialists.
There are no central planners in the health service, and it is not run by the government.
The government collects most of the money through taxation, but local money is also raised, and some services such and most medications are paid for by those who need them, anybody with higher bills for illnesses like diabetes, or out of work gets treatment for free.
Each County has a committee of elected representatives who oversee the delivery of county wide health care.
Most of the hospitals are independant Foundations. They get paid for services provided either by the government, private health insurance, or for chargeable services. They also have a local board governed by a mix of medical experts and locally elected officials. Central government has no representation on these bodies.
The government does set national standards of care and inspects to make sure that is provided, not always successfully.
There is profit in the system, but the main philosphy is care for the patient, and nobody has to have insurance in order to get care.
Our system provides everyone in the UK with freely available care for around $1,642 per person per year, for which there are 27% more beds available per 1,000 people than in America where your profit based system costs around $4,420 per person.
Your perfectly entitled to take the view that paying around $2,778 a year more for 75% less health care is better than our system...if you have the money, or the insurance to pay for it, then that is fine.
I am bemused that anyone other than plastic surgeons thinks the system is better in the USA for the 'majority' of Americans.