By Jan Lopatka PRAGUE (Reuters) – In just three years, Czech Finance Minister Andrej Babis has managed to expand smoothly beyond business into politics and now appears poised to be a contender for prime minister. His decades of experience running successful businesses was always part of his appeal to Czech voters sick of a stale political culture riddled with corruption and graft. But while many believe he can make a difference in the fight against what he calls “godfathers” and “Palermo”, others see the potential for clashes of interests and even a dangerous concentration of power. …