Or better yet, I can offer whatever I want to whoever I want whenever I want whether from my car, on foot, on bike, skateboard, roller skates or hover board and the onus is on law enforcement to prove wrongdoing. 
I can then use my right as a citizen to vote for any measure, politician or ordinance that causes the rich to have to pay more in taxes. I see the two actions as related but independent one from the other. 
The rich are free to be morally bankrupt as individuals, just as the poor are. But democratic societies have the right and obligation to take measures against extreme wealth inequality such as it exists in the United States at the moment. The Rich are a minority group that is using its disproportionate political power to lower the quality of life for the majority of citizens. The majority need simply exercise their constitutionally guaranteed rights to effectuate change in this regard.