Which is corrupted, and you use that corruption for your own personal benefit.
Bad tree, bad fruit -- no matter how many exceptions you make for yourself.
Jesus knew and acknowledged that people had to abide by the system that they lived in. He showed this when the pharisees tried to trick him about paying taxes to Caesar. He said give to Caesar what is Caesars and give to God what is Gods.
Mark 12: 12-17
12Then the chief priests, the teachers of the law and the elders looked for a way to arrest him because they knew he had spoken the parable against them. But they were afraid of the crowd; so they left him and went away.
Paying the Imperial Tax to Caesar
13Later they sent some of the Pharisees and Herodians to Jesus to catch him in his words.
14They came to him and said, “Teacher, we know that you are a man of integrity. You aren’t swayed by others, because you pay no attention to who they are; but you teach the way of God in accordance with the truth. Is it right to pay the imperial tax
b to Caesar or not?
15Should we pay or shouldn’t we?”
But Jesus knew their hypocrisy. “Why are you trying to trap me?” he asked. “Bring me a denarius and let me look at it.”
16They brought the coin, and he asked them, “Whose image is this? And whose inscription?”
“Caesar’s,” they replied.
17Then Jesus said to them, “Give back to Caesar what is Caesar’s and to God what is God’s.”
And they were amazed at him.
In other words when the pharisees tried to trap him by making him say dont acknowledge Caesar or pay him any taxes. He said do both but when it comes to God acknowledge who he is and what position he takes in all things. As Jesus has said before God is the one who sent Jesus and the one that Jesus the Son of God obeyed above all.
So we can be a part of this world because we are mortals and need to eat and have shelter. We need a certain level of things. Its when you start to place those things above God and make them more important that you make them your God. You cannot serve two masters God and money.
Matthew 6:24
24 “No one can serve two masters. Either you will hate the one and love the other, or you will be devoted to the one and despise the other. You cannot serve both God and money.
So we have to use that money to get certain things but that is not because we make money the be all and end all. But because it is a necessary thing. A Christians allegiance is to God above all and money is secondary. Whereas people of this world who make this world the only thing that represents existence they will make money and material processions the most important thing and their God.