Yeah, I'm losing trust also.
As for the Google ads, I have seen that so often I choke: When asked why they provide some programs free of charge, the developers respond that the advertising is how they make their money. Really? A few little Google Ad-Sense ads? Makes me wonder what other kinds of ads are supporting them. Like maybe the ads generated when they sell our email addresses and/or other personal info?
All in all, I somehow DO tend to trust private developers whose software I pay to use more than the freebies. Although I'm pretty sure that this concept is also very wrong - thinking that because I pay for their products that they are somehow more worthy of my trust!