The Prince of Wales has said it would be "criminally negligent" of him not to help people in need in Britain.
Prince Charles added that it was "too bad" if some people did not like what he did - it was his duty to continue.
"It's all part of minding deeply about this country and the people here and what I can do to help," he said in an interview to be broadcast on ITV.
It is part of a documentary to mark the 30th anniversary of the Prince's Trust charity for young people.
Asked about the future of his youth charity and whether he planned to carry on, the prince said: "As long as the Good Lord grants me some extension of my existence here yes, I shall do my utmost."
The prince added: "I think it would be criminally negligent of me to go around this country and not actually want to try and do something about what I find there.
"I think that's my duty to do so, if some people don't like it that's too bad isn't it frankly, because I think there are more important things to worry about, which is this country."
The focus of the documentary is mainly on the work Prince Charles does with disadvantaged young people.
However, he praises his wife, Camilla, for her encouragement.
The prince tells broadcaster Sir Trevor McDonald: "I'm very lucky there, thank you very much, great support."
When he is asked in the programme about disenchanted young Muslims and the London bombings, the prince speaks about the UK's tolerance.
"We ought to be thinking about that rather than endlessly squabbling about religion".
In the interview he said he was partly inspired to start the Prince's Trust by his time at Gordonstoun boarding school - a time he has described as "literal hell" and where he was bullied.
"I think it was probably partly my education.
"The thing about Gordonstoun, the school I was sent to in Scotland, was that it basically tried to encourage people to take the initiative and not sit around expecting other people to do anything.
"The main principle underlying the school was that in order to be able to help the transition from childhood to adulthood you needed to give young adolescents responsibilities."
High unemployment levels in the 1970s also influenced the prince to start the trust, and later the 1981 Toxteth riots prompted him to help young people set up their own businesses.
The interview will be broadcast on ITV on Tuesday, 16 May.