These aren't politicians they're staffers. Many people enter the political realm to affect policy change. Many of these people are driven by a desire to do good. You are painting with too broad a brush and your comment doesn't really add anything to the conversation.
Do some people enter politics because they just want power or they want to polish their ego? Sure! But that doesn't mean everyone in the industry is inherently a bad actor.
Even politicians (as opposed to staffers) sometimes take stands on moral issues - that would hurt them politically (rare but it happens)
At the risk of starting a politics flame war, I know/have known dozens of hill staffers, and to a person they're under paid and over worked. Their salaries are public, most of the low level people make < 35k (which doesn't go far in DC) for far longer than 40 hour work weeks.
A cynic could say they're just resume padding to sell out later, but if you're trying to mooch off of the taxpayer, being a low level capitol staffer is NOT the way to go about it.
"Sir, there are two passions which have a powerful influence in the affairs of men. These are ambition and avarice—the love of power and the love of money. Separately, each of these has great force in prompting men to action; but, when united in view of the same object, they have, in many minds, the most violent effects. Place before the eyes of such men a post of honor, that shall, at the same time, be a place of profit, and they will move heaven and earth to obtain it. The vast number of such places it is that renders the British government so tempestuous. The struggles for them are the true source of all those factions which are perpetually dividing the nation, distracting its councils, hurrying it sometimes into fruitless and mischievous wars, and often compelling a submission to dishonorable terms of peace.
And of what kind are the men that will strive for this profitable preeminence, through all the bustle of cabal, the heat of contention, the infinite mutual abuse of parties, tearing to pieces the best of characters? It will not be the wise and moderate, the lovers of peace and good order, the men fittest for the trust. It will be the bold and the violent, the men of strong passions and indefatigable activity in their selfish pursuits. These will thrust themselves into your government and be your rulers. And these, too, will be mistaken in the expected happiness of their situation, for their vanquished competitors, of the same spirit, and from the same motives, will perpetually be endeavoring to distress their administration, thwart their measures, and render them odious to the people."
Staffers on the Hill are paid very little and work long hours. They tend to be very interested in policy implementation and are sweating more than the average hire out of college because they want to make a positive difference.
Do some people enter politics because they just want power or they want to polish their ego? Sure! But that doesn't mean everyone in the industry is inherently a bad actor.
Even politicians (as opposed to staffers) sometimes take stands on moral issues - that would hurt them politically (rare but it happens)