Whenever you look around, there are so many small things that look attractive at first glance: opportunities to gain some money quickly, easy pleasures or unthinking applause from those who don't know what's worth praise and what isn't.
Perhaps you have some social skills, some power or influence somewhere — then there's a constant temptation to misuse them for gaining quick advantage; or you know you'll get away with some weak and improvised performance most of the time — so you take your chances more often than you should, skipping thorough preparations; you know that some promise of gain will open doors — and thus you give such a promise, bringing harm either to yourself when you don't keep it or to others when you do, and signal them that it's not merit that counts but only whom you know and owe.
It takes some practice to recognize enticements of that sort, and some caution and will to resist them. But resist them we should. They harden bad habits, making it more and more difficult to get rid of them. All decline of character is progressive. Every time you yield to it, it gets more and more ingrained. What's worse: unless you have stabilized better habits for a long time, and very strictly, it's horribly easy to slip back. A small indulgence can be sufficient to bring it all to the front again and toss you right back to where you started. Alertness is in order, and a strict and rigorous weeding out of all temptation. What looks like only taking small and inconsequential steps that really shouldn't matter will inevitably turn out such that you will pay for it, albeit later. Take care.