Indeed, we should feel bad for those worse off than others. This is something that falls outside the purview of political ideology.
The question it does raise, however, is what is the most effective means to address such problems. In all of recorded human history, no other system has improved the lot of the ordinary person more than the combination of free enterprise and free markets.
Irrespective of what type of economic system employed, there will always be a bottom x% of people for whom prosperity is unavailable. The question with which the rest of society ought to be concerned is two-fold:
a) What system will give this lowest x% the highest standard of living?
b) What system will give this lowest x% the greatest opportunity to escape their current station in life?
Here again, the answer to both of the above is that free enterprise and free markets (for lack of a better term, 'capitalism') have proven far superior to any other form of economic arrangement.