Given the question: Given the following passage  "If the highest echelons of the governments also take advantage from corruption or embezzlement from the state's treasury, it is sometimes referred with the neologism kleptocracy. Members of the government can take advantage of the natural resources (e.g., diamonds and oil in a few prominent cases) or state-owned productive industries. A number of corrupt governments have enriched themselves via foreign aid, which is often spent on showy buildings and armaments.",  answer the following question. Note that the answer is present within the text.  Question: Outside of actual cash, how can corrupt politicians seek gains?
The answer is:
natural resources (e.g., diamonds and oil in a few prominent cases) or state-owned productive industries