There is no issue in earning mass amount of wealth

قَالَ ابِنْ ُعُمَرَ : مَا أُبَالِي لَوْ أَنَّ لِي مِثْلَ أُحُدٍ ذَهَبًا أَعْرِفُ عَدَدَهُ وَأُؤَدِّي زَكَاتَهُ

‘Abdullah ibn ‘Umar رضي الله تعالى عنه said:

“I would not be worried if I had the like of [Mount] Uhud in gold, provided I knew its exact measure and I pay its poor-due (zakat)” - i.e. encompassing and earning wealth is not an issue, as long as the requirement of zakat is fulfilled upon it.