The billboard episode

Just before Eid when I was going to university, some billboards describing government's achievements caught my attention. After a couple of days, I noticed many more of them at different points of the city. Later on, I learnt from the news reports that such eulogy of the government has been hung all over the city. Further, it was learnt that those were occupied overnight without notifying their owners.
Does the government need to be ostentatious to advertise their successes? In the next few days, some leaders of the ruling party tried to justify the billboard publicity while the opposition criticised it. Lately, those are being removed, and, little wonder, at night. The government misused taxpayers' money, engaged large workforce in preparing, hanging, and removing them, harmed the billboard owners' business, and spoiled their own reputation too. I wonder how the politicians can waste their time and energy behind such useless activities.