People's bias toward Mayavati v/s Akhilesh Yadav

For last one month I am seeing 8 LCD screens 4 on each pillar at UP Gate on NH-24. Each LCD must have costed 50,000 rupee so money spent on these LCD screen is at least 4 Lakhs. These LCD screens are being used to show UP's CM Akhilesh Yadav's photo. Mayavati on the other hand constructed her status at some places in UP.

In last one month I have not heard even a single person calling Akhilesh Yadav self-centered and criticizing waste of money by Akhilesh Yadav. I know people who used to take out at least half an hour daily to criticize Mayavati for her self-centered attitude and waste of money on statues (not only Mayavati's but B. R. Ambedkar also). These people are surprisingly silent about waste of money by Akhilesh Yadav. Does it have something to do with fact that Mayavati is a Dalit and Akhilesh Yadav is an Upper caste? I think that caste of Akhilesh Yadav and Mayavati and people's reaction are related. If it is so then why should I expect Dalit's not have bias towards Mayavati when upper caste people are having bias against Mayavati?